Curiosity- Page 3 of 6 - Daily Dog Discoveries

Five Interesting Facts About a Dog’s Sense of Thirst

September 22, 2016September 18, 2016 by Adrienne Farricelli CPDT-KA

The sensation of thirst is what makes dogs crave water, and just as it happens with us, it’s natural for a dog to feel thirsty after being out in hot weather or after exercising. Thirst is what tells dogs that it’s time to replenish his liquid supply. It’s sort of like that “check fluids” light that starts blinking when it’s time to bring your car in for service. Whether your dog drinks from a fresh mountain spring or a bowl of water, the sensation of quenching that thirst certainly makes him feel better. Keep an eye on that water bowl though, at times, excessive thirst can be a sign of a medical problem.

Dogs Have a Thirst Center…

What causes dogs to be thirsty? A dog’s thirst center is activated when the body detects a need for more fluids. Thirst can be caused by a loss of blood volume, known as hypovolemia or by a change in the normal levels of sodium and water in the blood. The dog’s thirst center is located in the brain, and the hypothalamus is ultimately the responsible party for triggering thirst. The hypothalamus is equipped with special sensors that are constantly monitoring the blood’s concentration of sodium and the blood’s overall volume and pressure. When the sensors detect low blood volume as seen from excessive bleeding or when it detects high blood concentrations of sodium, that’s when the dog’s hypothalamus springs into action and sends out a strong message: “Hey Rover, go drink something now!”

“The thirst center is stimulated by an increase in plasma osmolality (sodium concentration) and/or a decrease in blood volume (hypovolemia) resulting in an increase in water consumption.”~David S. Bruyette, DVM, DACVIM

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And it Can Take a Conservatory Approach

When the dog’s body recognizes lowered fluid levels, it not only increases thirst, but also takes important measures to protect the dog from fast dehydration. The hypothalamus will therefore take a further step to prevent this by soliciting the posterior pituitary gland to secrete an antidiuretic hormone (ADH) also known as arginine vasopressin, which travels to the dog’s kidneys telling them to concentrate the urine and reduce urine volume. The goal is therefore conserving water, at least until the fluids are replenished. How’s that for a lesson on water conservation?

Did you know? The urine specific gravity test is meant to evaluate how concentrated a dog’s urine is and can help the vet determine how well a dog’s kidneys are working.

Some Dogs Have too Little

When a dog isn’t hydrated well, he’s known for being dehydrated. Dehydration in dogs can occur in two specific circumstances: reduced water intake or increased loss of fluids as seen from excessive vomiting and diarrhea. There are several ways you can tell whether a dog is dehydrated. A dehydrated dog will act lethargic, lose appetite, have sunken eyes and a dry mouth. A dehydrated dog’s skin will also lose elasticity and therefore if you pull the skin over the back or neck, it will fail to spring back into position quickly, or worse, it may stay lifted. Capillary refill time will also increase in dehydrated dogs.

Curious fact: Interestingly, yet rare, some dogs may have a malfunction in their thirst center of his brain. According to Prospect Park Animal Clinic, this means that, in plain English, the affected dogs’ “I’m thirsty trigger” doesn’t work as it should and therefore these dogs don’t feel the urge to drink.

And Some Dogs Have Too Much

On the other end of the spectrum are dogs who drink too much. The medical term for excessive drinking is “polydipsia.” According to Dr. David Bruyette, a board-certified veterinarian specializing in internal medicine, water consumption exceeding 100 ml/kg is considered abnormal. There are several conditions that can cause increased drinking in dogs, and along with that, increase urination (what comes in, must go out after all!).

According to the late and dearly missed veterinarian Dr. Sophia Yin, some of these diseases could range from a brain tumor that affects the dog’s thirst center of the brain to more common issues such as kidney or liver disease, adrenal gland disease or diabetes.

And a Few Dogs May Even Guard it!

Most people are accustomed to dogs who guard their toys, food, bones and resting spots, but not many people are familiar with dogs who feel compelled to guarding the water bowl. There’s a good reason though why they do so, explains veterinary behaviorist Karen Overall, in the book “Manual of Clinical Behavioral Medicine for Dogs and Cats.”Water is one of those things a dog may struggle with a human or other dog over access to it. Add on top of that, the fact that some dogs who had a hard start in life may have had limited access to water and experienced pronounced thirst, and there you go, you have the perfect recipe for a dog who compelled to guard the water bowl.

References:

Functional Anatomy and Physiology of Domestic Animals, By William O. Reece, Wiley-Blackwell; 4 edition (March 4, 2009)
DVM360, Diagnostic approach to polyuria and polydipsia (Proceedings) retrieved from the web on September 18th, 2016
Manual of Clinical Behavioral Medicine for Dogs and Cats, By Karen Overall, Mosby; 1 Pap/DVD edition (July 9, 2013)

Understanding Dog Pee Pads and How They Work

September 15, 2016September 15, 2016 by Adrienne Farricelli CPDT-KA

Dog pee pads: let’s face it, the idea is ingenuous, getting a dog or puppy to use a pee pad while the rest of the home remains immaculately clean is a dog owner’s dream come true. Too bad though that soon reality hits hard when dogs seem to potty just about everywhere except on the pee pad! If you’re dealing with this frustrating situation, rest assured you are not alone, countless owners get frustrated when their dogs totally miss the target and aim wrong. Is something wrong with the pee pad or is the dog just not getting it? Does Rover perhaps need a marksmanship class?Understanding better how pee pads work and how dogs perceive them, can help troubleshooting the problem.

Dog Pee Pads Under Scrutiny

What are pee pads for dogs? Also known as potty pads, piddle pads, wee-wee pads or training pads, dog pee pads are simply square or rectangular layers of absorbent material meant to soak up a dog’s excretions.

Most dog pee pads are made of gauze over blue plastic which is meant to face down. Several brands also have adhesive tabs to help them adhere to the floor. For owner appeal, several brands now offer odor-eliminating scents so to reduce odors.

There are a variety of pee pads on the market nowadays with different features and perks. The next question is though, do pee pads really work? Are they suitable for everybody? What can owners do to increase the chances that their puppy or dog will use them?

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Not for Everybody

Pee pads for dogs work may work for some owners, but they are not for everyone. If you have access to a yard and have time to invest in traditional potty training, your best bet is to start training your puppy or dog to go potty outdoors straight from the get-go. It can be quite challenging to wean puppies off training pads after using them for quite some time as puppies tend to develop a substrate preference at an early age. According to Karen Overall, puppies tend to develop a substrate preference at around 8 and a half weeks of age.

Not all people though have the fortune of having access to a yard, and some dog and puppy owners may find it easier to use the dog pee pads permanently (or partially, at least until the puppy is old enough to hold it for longer periods of time) for various reasons. Here are a few examples of cases where dog potty training pads may turn useful:

Owners of those teeny pint-sized dogs who get chilled very easily when temperatures drop
Owners of sick, convalescent dogs who are weak or have mobility problems.
Owners of fearful dogs who are too afraid and uncomfortable to potty outdoors
Owners of puppies who are in the process of being potty trained but live in high-rise apartments
Owners of young puppies who must leave their pups inside for longer than they can hold it
Owners of puppies who don’t have access to a backyard
Owner who have a health issue and cannot go easily outside

The Truth About Attractants

Many companies advertise how well their pee pads work courtesy of several attractants added for the purpose of drawing the dog to relieve himself on the pad. Not all attractants are created equal though and therefore not all of them may work.

Some puppy pee pads are given a fresh grass scent. These pee pads can therefore turn helpful for dogs and puppies destined to use grassy areas in the yard in the future as a permanent substrate.

Pee pads treated with ammonia can aid in the potty training process considering the role ammonia has in potty training. Ever heard how using ammonia-based products to clean up soiled areas can cause a puppy to actually soil over the area more and more? Here’s the reason why. Ammonia is a byproduct excreted in urine, so when you clean up urine using an ammonia-based product, you are spreading the smell of.. yes, urine. So when the puppy feels the need to urinate, he’ll pick the spot that smells like ammonia simply because the smell of urine tells him that’s his peeing spot. Adding ammonia to a pee pad may therefore actually do the trick convincing him to pee on it, but there’s a cheaper option as described below.

And what about pee pads treated with pheromones? Some pee pads are treated with synthetic pheromones while others sell pheromones in spray form to be sprayed directly on the pee pad. Pheromones are chemicals secreted by dogs that trigger responses in other dogs who smell them. In this case the synthetic pheromones used in dog pee pads are crafted for the purpose of attracting the dog to pee over it in a similar fashion as when they sniff a fire hydrant or lamp post that has pheromones left by another dog. While this may seem like an astute strategy, it doesn’t always work. Indeed, many housebreaking pheromones-based sprays have awful reviews. And while some pups seem attracted to the pads, it’s most likely because they can’t wait to rip them up into pieces or turn them into their favorite sleeping spots! So for sake of effectiveness, even an old newspaper may work, but it might not fare well when it comes to absorption.

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Did you know? If you have plain pee pads with no attractant, you can make your own form of attractant by simply collecting with a paper towel a bit of your dog’s urine from an area he previously soiled and passing it onto the pee pad. The scent of pee will tell your dog that this is his new bathroom!

Strategies for Success

Many people assume that once you place a pee pad on the floor, the dog will magically pee on it every single time. Sorry, to burst someone’s bubble, but if things were as simple as that, the process of potty training would be as easy as pie and dogs would start growing halos over their heads. The truth is that dogs need to be trained to use the pads and it can take even a bit of time and patience. There are several strategies though that can help attain success.

Set your dog for success. Placing the pee pad in the farthest corner of the house is like sending your dog on a treasure hunt through a maze, especially for small pups. Make it easy to find.
Make going potty on pee pads easy, fun and rewarding while making going potty in other areas, difficult, boring and close to impossible (courtesy of management and supervision).
If you must leave for the day or cannot supervise you puppy, keep your puppy confined inside a small enclosed pen with the pad strategically located at the opposite side from his bed, water bowl and toys. Most dogs do not like to soil near where they sleep, eat or drink, so their best choice is to use the pad.
Choose a spot for the pee pads and make sure to keep the location the same. Dogs are routine-oriented creatures so if you start changing around the location of the pee pad they start feeling confused. If you really must change, do it gradually over several days moving it a few inches at a time.
Pick a location that is quiet and with not many distractions going on.
Keep the pee pad on a surface that is easy to clean such as tile floor. If you must use carpet, place some tarp under it to prevent urine from seeping into the carpet.
The minute your pup positions himself to eliminate on the pad, be sure to say “go potty”so that he associates that word with the action of elimination.
Always lavishly praise and reward your dog or puppy for using the pee pad.
Never scold your puppy for missing the pad or going somewhere else. Scolding makes puppies associate your presence with punishment causing them to potty secretly out of sight behind a couch or under a bed.
Clean up all accidents with an enzyme-based cleaner that dissolves any traces of residual odors. Remember that to a dog, residual odors of previous accidents act as reminders of the past which may trigger them to urinate on them once again. While we use our eyes to locate a restroom, dogs use their noses.
If you are using the pee pads temporarily and then you are planning to let your dog potty outside grass, your best bet is to use a pee pad that smells like grass, or even better, use one of those fake grass litter boxes for dogs that provide the scent and feel of real grass. Also, placing the pad gradually closer and closer to the door can be helpful if your final objective is to get your dog to potty outdoors.
Once your puppy learns to reliably used the pads in his enclosure, you can gradually increase his confinement area (keeping the pads always in the same place) until he graduates to being left loose in the house and remembering where to go.

“House soiling quickly becomes a bad habit because dogs develop strong location, substrate, and olfactory preferences for their improvised indoor toilet areas.”~Ian Dunbar Dog Star Daily

References:

Manual of Clinical Behavioral Medicine for Dogs and Cats, 1e 1 Pap/DVD Edition, by Karen Overall MA VMD PhD DACVB CAAB, Mosby; 1 Pap/DVD edition (July 9, 2013)
Dog Star Daily, Housetraining, retrieved from the web on Sept 15th, 2016.

Six Fascinating Ways Dogs Release Pheromones

October 16, 2016September 9, 2016 by Adrienne Farricelli CPDT-KA

Dogs are known to communicate through chemical messages known as pheromones, which carry out several important functions. The term pheromone derives from the Greek word “pherein” which means “to transport” and the word “mone” meaning hormone. The term is therefore utilized to depict those volatile, odorous substances that are secreted for the purpose of causing a physiological reaction in the dogs who receives them.

For sake of comparison, the mechanism is similar to an answering service system. A person leaves a message on the answering machine that is then relayed to the receiver when he presses a button. Since dogs do not have a phone or an answering machine, they rely instead on special glands meant to emit pheromones, and a special organ, the Jacobson organ, located in the roof of the mouth with ducts leading to the nose and the mouth, meant to pick up these messages. Dogs can emit pheromones in a multitude of ways so today we’ll be taking a look at six fascinating ways dogs release pheromones.

puppies nursing 1) Intermammary Sulcus Pheromones

Shortly after being born, puppies are exposed to special pheromones produced by mother dog. These pheromones are secreted by the sebaceous glands found in mother dog’s intermammary sulcus, the area in between her breasts where they are detected by the puppies upon nursing.

Because these pheromones have the power to provide calm, comfort and a sense of well-being to the puppies, they’re called Dog Appeasing Pheromones (DAP). Nowadays, DAP is produced synthetically (Adaptil) and sold under the form of special sprays, plug-ins and collars that are used as calming aids for dogs.

Their purpose is to provide reassurance, especially when dogs are exposed to new environments that require acclimatization. It has been found that the reassurance properties of DAP persist into adulthood and can therefore provide comfort to dogs of any age.

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” The use of pheromones should not be reduced to treatment of behavioral disorders (potentially associated with psychotropes or a behavioral modification program) but should be included in a strategy of improving the welfare of pets in veterinary structures (during examination and hospitalization) and in breeding networks (separation from the mother and transport).” Pageat P, Gaultier E. 2003

2) Anal Gland Pheromones

Anal glands, also known as “scent glands” are paired sacs that are found around each side of the dog’s anus approximately at the 4 0’clock and 8 o’ clock position.

When dogs defecate, their feces pass through the glands which are lined with sebaceous glands that secrete a semi-oily, brownish fluid that contains pheromones and is used for identification purposes. Dogs who stumble upon a dog’s feces can therefore learn more about the dog’s sex, age and general identity courtesy of these pheromones.

Yes, this explains why dogs are so interested in sniffing other dogs’ poop at the park! Other than used for identification purposes, feces left behind work may also work as powerful territorial posts, telling other animals to stay away as “Rover lives here.”

On top of secreting fluid when dogs have a bowel movement, sometimes the anal glands may empty when a dog is particularly frightened. In this circumstance, a dog’s anal glands are likely emitting alarm pheromones which are picked up by other dogs. For example, in a veterinary hospital setting, frightened dogs may leave traces of pheromones from their anal glands. It is possible that such pheromones may cause a behavioral and/or physiological response in the dogs who detect them, but studies are still needed to pinpoint the exact dynamics.

” The function of spontaneous emptying of the anal glands during fear has not been extensively studied, but may be related to the release of alarm or aggression-inhibiting pheromones.” ~ Sarah Heath, Veterinary Specialist in Behavioural Medicine.

3) Urogenital Pheromones

Those pheromones aren’t only coming from the anal glands, turns out dogs secrete pheromones also from the vulval, preputial area and urinary tract area. Several of these are emitted for reproductive purposes, and with a powerful sniffer as seen in dogs, this isn’t even surprising.

Females in heat produce pheromones from their reproductive tracts that are meant to be picked up by male dogs even miles away. When female dogs in heat urinate, their urine is rich in these pheromones which indicate whether she is receptive.

Yes, think about it as a hot chick after a first date leaving a message that says “call me.” The specific compound has been identified as methyl p-hydroxybenzoate, and according to a study, when this compound was applied to spayed female dogs, it caused male dogs to attempt to mount. Quite a powerful potion that is!

And of course, every body knows about a dog’s fixation with pee. Dogs will urine mark on vertical surfaces leaving pheromones behind that can be easily detected at “nose-level” for other dogs to check out. Dogs tend to react differently to pee: some just carefully sniff it and then leave the area, while some others will pee on top of it. This habit is what has triggered the marketing of potty training pads or pee posts treated with synthetic pheromones for the purpose of grabbing a dog’s attention and hopefully enticing him to eliminate on them next time nature calls.

4) Interdigital Pheromones

Did you know? Dogs have also special glands located in between the toes (interdigital) which are also capable of emitting pheromones. When dogs are scratching dirt after eliminating it’s likely that they are basically leaving behind these pheromones for other dogs to detect.

Interdigitial glands are therefore used for marking, but are also used for alarm, explains veterinarian Dr. Bonnie V. G. Beaver in the book “Canine Behavior: Insights and Answers.”

Perhaps this provides another facet as to why stressed dogs tend to sweat from their paws. Along with the sweat, they may be leaving behind important alarm messages that will give other dogs a “head’s up” about the presence of a threat.

5) Ear Pheromones

Ever wondered why dogs are so attracted to each others’ ears? Those doggy ears have special ceruminous and sebaceous glands which also contain pheromones.These pheromones are similar to the dog appeasing pheromones released from mother dog, only that they’re applied to a wider basis for social purposes this time, suggests veterinary behaviorist Dr. Cam Day.

Interestingly, these pheromones found in the skin around the ears, make the ears attractive to younger animals creating a cohesion effect with their social group. Adult dogs though may be interested in ears too, and it’s not unusual seeing dogs sniffing each other’s ears as part of their greeting ritual.

“Dog appeasing pheromones have a calming effect on puppies. It has also been isolated from the ears in some adult dogs and may play a role in social communication and cohesion.” ~Nicola Ackerman

6) Facial Pheromones

As with the ears, dogs are often also attracted to sniffing each others’ mouths. This is because the mouth area also emits pheromones, more specifically the labial (lip) area. Many dogs often greet other dogs by first sniffing under their tails, but afterward they may decide to move to other interesting areas where pheromones may also be present such as the lips, remarks Tracie Hotchner, in the book “The Dog Bible: Everything Your Dog Wants You to Know.”

The primary pheromone secreting glands in the dog are the labial, auricular, perianal, genital (vulvar or preputial), interdigital (pedal) and mammary complexes of sebaceous glands. Most of the information appearently enters via the vomeronasal organ “~Dr. Bonnie Beaver

To Sum it up: Here are Areas Where Dogs Tend to Secrete Pheromones (excluding the intermammary sulcus as seen in mother dog)

pheromones-body

References:

Pageat, P.; Gaultier, E. (2003). “Current research in canine and feline pheromones”. The Veterinary Clinics Small Animal Practice. 33 (2): 187–221
Donovan,C.A. (1969) Canine anal glands and chemical signals (pheromones). J. Am. Vet. Med. Assoc., 155, 1995–1996.
Veterinary Nursing Journal, Volume 22, Issue 9, 2007, Understanding pheromones, by Sarah Heath
Sex pheromone in the dog, Goodwin M, Gooding KM, Regnier F. Science. 1979 Feb 9;203(4380):559-61.
The Consulting Veterinary Nurse, By Nicola Ackerman, Wiley-Blackwell; 1 edition (September 4, 2012)
Canine Behavior: Insights and Answers, By Bonnie V. G. Beaver, Saunders; 2 edition (January 5, 2009)

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Do Dogs Bite Their Tongues?

September 4, 2016September 4, 2016 by Adrienne Farricelli CPDT-KA

A dog’s tongue is often hanging out and it almost always seems to have a nice reservoir of steady saliva ready to greet human friends, but dog tongues are prone to being bitten too. Sure, this doesn’t happen too often fortunately, but when it does, it can be a scary event for those watching. With a dog’s sharp teeth, biting the tongue can do quite some damage, but luckily Mother Nature has provided dogs with ways to prevent this from happening–at least, not too often. Chewing requires a well-orchestrated interaction between the tongue and jaw and a precise mechanism that prevents dogs from biting their tongues. Without such a mechanism, dogs would end up chewing more tongue than kibble. Not a great evolutionary advantage for sure!

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“Dogs do occasionally bite their tongues. Fortunately, they don’t seem to chomp down too hard, or they might end up tongue-less. They seem to bite them less often than people bite their own tongues, perhaps because with constantly hanging it out of their mouths, they naturally have a mechanism that automatically pulls it from the path of their own teeth.”~D. Caroline Coile, Margaret H. Bonham

Dog Biting Tongue While Eating

In humans, biting the tongue is often a “side effect” of civilization. Eating fast, eating while talking or just eating while being distracted from other people, the quintessential iPhone or the TV, is often what causes us to bite our tongues. The pain when we bite our tongue seems to tell us that we should pay more attention in the future to what we chew on! But what about dogs? Some dog seem like they’re biting their tongues while eating. You may hear these dogs whining briefly almost as if saying “ouch!”

While dogs don’t have work schedules or talk with others while enjoying their meals, dogs are fast eaters by nature and therefore this can perhaps make them prone to biting their tongues at times, but if this happens often, it may be a sign of localized swelling, presence of a mass or even a dental malocclusion causing teeth to snag on the tongue. So if your dog whines while eating, see your vet, it may also be possible he might not be biting his tongue, but is actually suffering from a mouth or dental problem.

Dog Biting Tongue While Playing

When dog play vigorously, accidents can happen. In dogs, biting the tongue while playing is not that uncommon and it makes sense considering that that tongue is often out and “in the way” when a dog romps around a lot such as during vigorous play. It can happen in particular when dogs are fetching items with their mouths or when they trying to catch things such as a tug toy or a flirt pole and miss, with the end result of “ouch!”biting their tongues.

Dog Biting Tongue During Seizures

Seizures cause involuntary spasmodic movements and dogs affected are often seen violently paddling their feet, twitching their muscles, chewing and foaming at the mouth. Contrary to popular belief, dogs do not swallow their tongues during a seizure, but they can manage to bite it. Trying to move the tongue out of the way may seem like a good solution but this practice is not recommended as the dog’s uncontrollable chewing movements may cause an accidental bite, warns Dr. Etienne Cote in the book “Clinical Veterinary Advisor: Dogs and Cats.”

Protected by Natural Mechanisms

Let’s face it: the tongue is in a vulnerable position being in the middle of a dog’s sharp teeth, but evolution has considered keeping that tongue out of harm’s way from all the friction going on when dogs, people and other animals chew their foods. We might not know yet exactly what mechanism prevents dogs from biting their tongues on a constant basis, but in mice, a study has shown that special premotor neurons, responsible for controlling jaw and tongue muscles, play a role in preventing the mouth from closing unless the tongue is simultaneously retracted.

Fast Healers

Luckily, tongue injuries heal very well because the tongue has excellent vascular supply, explain Dale Kressin and Steve Honzelka, two board-certified veterinarians specializing in animal dentistry. Here’s a hint: look under your tongue using a mirror and you’ll see how rich in vascular supply it is. However, the fact that the tongue has a lot of vascular supply also means that, when injured, it tends to produce copious amounts of blood which can be scary to dog owners to witness. According to veterinarian Dr. Kara McCarthy though, it’s unlikely for a dog to bleed to death from biting his tongue.

In the event of an injury derived from a dog biting his tongue, it’s best to keep the dog calm as, the more the excitement, the higher the blood pressure and the more the bleeding. Generally, bleeding from tongue lacerations starts slowing down after 5 to 10 minutes. Applying a bit of pressure to the area, if the dog allows it (don’t do this of course if your dog resents having his mouth handled), may help form a clot. Ice on the area or offering a bowl of ice water can help constrict the blood and help clotting, suggests Dr. Christian. If the bleeding persists though, a vet visit is in order, possibly to have the tongue injury cauterized. At times, dogs may also need stitches if the cut is long or deep. Generally, minor laceration tend to heal in 7 to 10 days. Feeding moistened food, canned food or gruel that is easy to lap up while the tongue heals, may be helpful.

Disclaimer: this article is not meant to be used as a substitute for veterinary advice. If your dog has injured his tongue, please see the vet.

References:

eLife, Monosynaptic premotor circuit tracing reveals neural substrates for oro-motor coordination, Edward Stanek et al. Duke University Medical Centre, United States, April 30, 2014
Why Do Dogs Like Balls?: More Than 200 Canine Quirks, Curiosities, and …By D. Caroline Coile, Margaret H. Bonham, Sterling (September 2, 2008)
Vet Info, My dog bit her tongue and it won’t quit bleeding. What do I do. retrieved from the web on September 4th, 2016
My Pet’s Dentist, Tongue Lesions in Pets, retrieved from the web on September 4th, 2016

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The Truth About Scruff Shaking Dogs for Discipline

December 28, 2018September 3, 2016 by Adrienne Farricelli CPDT-KA

When it comes to training dogs, there are several different types of methods and techniques, but training methods focusing on confrontational, punishment-based techniques are known to cause unnecessary stress and fear in dogs. One method that has been promulgated by television shows and books is scruff shaking, basically grabbing the puppy or dog by the scruff and shaking when he is misbehaving. The practice of scruff shaking dogs has been around for many years and has often been portrayed as species typical behavior, meaning that it’s based on what dogs do to other dogs. Turns out though that studies prove otherwise.

A Deeper Insight

Scruff shaking is based on the belief that mother dogs correct their puppies by biting and shaking them by the scruff of the neck. There is also belief that dogs use scruff shakes with other dogs. As mentioned, several television shows and some books have promulgated a dangerous “scruff shaking trend” in the past years suggesting it as a way for humans to correct undesirable behavior in dogs. By shaking the puppy or dog’s scruff, or poking fingers into the puppy’s neck, it has been suggested that dog owners can emulate the scruff shaking carried out by mother dog or applied among dogs.

“That’s what the (mother dog) does to discipline them.” I sometimes wonder if the people who propose these strange and barbaric practices have ever seen a dog before. (Mother dogs) do not discipline puppies by scruffing them.”~ David Ryan PG Dip (CABC) CCAB

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Violence Begets Violence

Scruff shaking is based on positive punishment, meaning that its timely application is meant to reduce and stop an unwanted behavior. When positive punishment-based techniques are used to modify dog behavior, a vast array of side effects may occur.

Scruff shaking along with alpha rolls and other punishment-based, physical approaches not only negatively affect the dog and owner bond, but also heighten the chances for defensive aggression.

The owner’s hands soon become a threat rather than a source of rewards, and dogs may learn to respond to any hand movement towards them with defensive behaviors such as growling, snapping and even biting.

According to a study conducted by Meghan Herron, DVM, DACVB, Frances Shofer, DVM and Ilana Reisner, DVM, DACVB, of the Matthew Ryan Veterinary Hospital of the University of Pennsylvania, it was found that when dog owners resorted to harsh confrontational techniques, dogs responded with aggression.

More precisely, just to get an idea: 43 percent of dogs responded with aggression when being hit or kicked, 39 percent reacted to an alpha roll, 38 percent responded aggressively to having an owner grab their mouth and take out an object forcefully and 26% percent responded defensively when given a scruff shake.

” Punishment is like carpet bombing. The behavior you wanted to target gets hit but so can a huge portion of the dog‘s whole repertoire.”~ Jean Donaldson

Mother dog gently "nibbling" her pup. — Mother dog gently “nibbling” on her pup.

What Studies Say

In dogs, shaking by the neck is part of the predatory sequence meant to kill prey. It would be very counterproductive for a normal mother dog to do that. Mother dogs may carry their pups in their mouths to move them from one location to another and when they do so, they are very gentle.

The belief that scruff shaking is a species typical behavior carried out by mother dogs is unfounded and several studies have proven that.

In a study involving the observation of the interactions between mother dog and pups, out of 190 breeders, 97.2 percent reported never witnessing mother dog shaking her puppies by the scruff. (Hallgreen 1990) Even among thousands of cases involving aggression in dogs, scruff shaking was reported as being rare and unusual (Schilder and Netto, 1991) Based on this evidence, scruff shaking is not only harmful and potentially dangerous, but also totally inappropriate.

“Normal mother dogs do not scruff or shake their offspring. Rather, they shape the puppy’s behavior with a complex physical language which uses self-inhibition from the start. Good canine moms use visual signals or simply walk away; even their physical responses do not include actual biting. By the way, they are also extremely tolerant of puppy indiscretions and we could learn quite a lot from their patience.” Reisner Veterinary Behavior Services, LLC

Alternative Methods

Dogs should perceive hands as sources of good things.

Scruff shaking doesn’t teach the dog which behavior is desired from the dog. It risks teaching dogs to fear hands and the owner and, as seen, it could trigger defensive behaviors. Teaching the dog an alternate, incompatible behavior that can replace the undesirable one, is often a successful approach.

Owners dealing with behavior problems should consult with a dog trainer or behavior consultant focusing in force-free behavior modification techniques. If your dog is exhibiting behavioral issues, please get professional help. Grabbing a dog by the scruff dog is definitely not the answer.

“When we engage in such behaviors toward our dogs, we are not telling the dog we are “boss,” instead we are telling the dog we are dangerous creatures to be avoided or fought off. There is no “dominance” in these scenarios—only terror and the instinct to defend oneself against attack.” ~Association of Professional Dog Trainers.

References:

The Culture Clash by Jean Donaldson, James & Kenneth Publishers (January 19, 1996)
Herron M.E., Shofer F.S., Reisner I.R. 2009. Survey of the use and outcome of confrontational and non-confrontational training methods in client-owned dogs showing undesired behaviors. Applied Animal Behavior Science, 117, pp. 47-54.
The Other End of the Leash, Confrontational Techniques Elicit Aggression, retrieved from the web on September 3rd, 2016
Association of Professional Dog Trainers, Dominance and Dog Training, retrieved from the web on September 3rd, 2016
Karen Overall, Manual of Clinical Behavioral Medicine for Dogs and Cats, Mosby; 1 Pap/DVD edition (July 9, 2013)

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Eight Facts About Sleep Dogs Want You to Know

September 2, 2016September 2, 2016 by Adrienne Farricelli CPDT-KA

“Let sleeping dogs lie,” says the famous adage, and those are surely words of wisdom when dogs hit the pillow. As in all living creatures, sleeping is important in dogs, and while dogs don’t have tight work schedules as people do, they still benefit from getting all the sleep they can get. Along with quantity of sleep, the quality of sleep is also something that’s important. In a previous article we looked at different dog sleeping position meanings, today instead we’ll be taking a peek at fascinating facts about dog sleep that dogs would like you to know.

1) We Love to Sleep in Human Beds…

Roll Over Rover! According to a survey conducted by Novosbed, a company selling luxury memory foam mattresses, an astounding 71 percent of pet owners confessed sleeping with their pets, with 43 percent of them sleeping with them every night, 23 percent reporting only sleeping with them occasionally and 5 percent (drum roll please!) sneaking their pet in bed when their significant others were out of town.

Pets also seem to have their favorite resting spots, with 52 percent sleeping at the foot of the bed, 23 percent snuggling right next to their owners, 14 percent sleeping under the covers and 11 percent sharing a pillow. This news is really nothing new, a while back the American Animal Hospital Association (AAHA) had found that 60 percent of cats and dogs slept in the owner’s bed or in their bedroom.

2) And the Best Part is it’s Good for You Too!

Some people may frown upon people who share their beds with their pooches, but for those who do sleep with their furry friends, here’s a great incentive to keep doing that. According to a survey conducted by the Center for Sleep Medicine at the Mayo Clinic in Arizona, pet owners who sleep with their dogs and cats may actually be getting better ZZZs. Despite what sleep experts have said for years, it was found that only 20 percent of owners found their pets to be disruptive; whereas, 41 percent felt that their pets were unobtrusive and even beneficial for their sleep. Perhaps it’s time for doctors dealing with sleep disorders to consider having more people share their sleep environment with a furry friend.

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3) We Go Through REM Sleep Too…

Just like people, dogs go through various different stages of sleep. The first stage of sleep mainly comprises low frequency electrical activity, and as such, it’s know as slow wave sleep. After a while, the dog then enters the rapid eye movement stage (REM), which, as the name implies, is characterized by rapid eye movements and much more than that.

During the REM stage (as dog owners can attest) dogs are often seen breathing faster, moving their legs, twitching their ears, chewing and even barking in their sleep! It all makes sense though when we think that the REM stage is when animals and people are dreaming. Have fun dreaming about eating that sandwich left unattended on the table and chasing rabbits Buster!

4) But Doggy REM can Sometimes get Out of Hand

In some dogs, movement carried out during REM sleep may be excessive and sometimes may even appear violent. There are reports of dogs exhibiting excessive running movements of the limbs, dogs attacking inanimate objects and some even propelling themselves across the floor. While these movements may appear similar to seizures, affected dogs can be awaken and show no coordination problems or confusion which is in contrast with what happens during a seizure, explains board-certified veterinarian Dr. Linda Shell. There’s a chance that dogs may be prone to developing a sleep disorder that has observed in people and that goes by the name of REM behavior disorder.

5) As we Age We May Wet the Bed…

In humans, wetting the bed is associated with young children, but in dogs it’s mostly a matter of aging and it seems to affect mostly female spayed dogs. It’s called “Primary sphincter mechanism incompetence“(PSMI) also known as hormone-responsive urinary incontinence”or “estrogen-responsive incontinence” or more simply “spay incontinence. “A study, found that about 1 out of 5 female dogs affected by this condition get it after they are spayed.

Here’s what basically happens. Strong sphincter muscles help keep good tone and prevent urine from escaping, but as spayed dogs age, these muscles tend to weaken causing leakage of urine when they’re resting or sleeping, explains veterinarian Dr. Marie. While senior spayed females dogs are mostly affected, this condition can also affect younger dogs (and occasionally males too). Fortunately, this type of incontinence can be remedied with prescription veterinary drug known as phenylpropanolamine (yeah, try to pronounce that! )

6) And Get Disrupted Sleep Too.

Aging is sure no fun, and as dogs live longer lives, dog owners witness more and more problems related to old age such as arthritis, incontinence and canine cognitive dysfunction, the canine version of Alzheimer’s disease. Affected dogs show several signs along with disrupted sleep-wake cycles, which means that instead of resting peacefully, they’ll spend their nights pacing and vocalizing. A particularly distressing aspect of this whole ordeal is the fact that dog owners have a difficult time finding a way to comfort their dogs when they are affected by this condition, explains veterinary behaviorist Dr. Karen Overall.

7) Stress Affects Us as Well..

People are often tossing and turning at night when they are stressed by a multitude of problems, but stress can affect a dog’s sleep too. Sure, dogs don’t have to worry about balancing their checkbooks or filing for divorces, but they are sure prone to stress such as from loud noises, exposure to other animals and side effects of harsh, aversion-based training techniques (which should never be used! read ASVAB’S position statement) While some dogs are plain old lazy (think greyhounds and English bulldogs), consider that dogs who seem to sleep a whole lot may be stressed.

“Stressed dogs usually will not experience a satisfying sleep which is why they are always trying to sleep.”~James O’ Heare

8) So Please Let Us Sleeping Dogs Lie

So yes, dogs needs their daily amounts of beauty sleep too and if dogs are stressed, it’s paramount to work on reducing their stress levels. Dogs denied adequate levels of stress often pay the consequences under the form of behavioral problems and and impaired learning abilities, explains veterinarian Dr. H. Ellen Whiteley in the book “Understanding and Training Your Dog Or Puppy.” Want a dog who likes to hit the snooze button? Perhaps try going with one of those giant dog breeds.

“Some very large breeds of dogs, like Newfoundlands, Saint Bernards, and mastiffs, often spend a great deal of their lives sleeping—perhaps up to sixteen or even eighteen hours a day. ” ~Stanley Coren

References:

Are Pets in the Bedroom a Problem?, Lois E. Krahn, MDcorrespondencePress enter key for correspondence information, M. Diane Tovar, RCP, Bernie Miller, RPSGT, RCP, CCSH Center for Sleep Medicine, Mayo Clinic, Scottsdale, AZ
DVM360, Identifying and managing behavioral changes in older dogs and cats, retrieved from the web on September 2nd, 2016

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Surprise, Dogs Have Different Sniffing and Searching Styles

November 29, 2016August 27, 2016 by Adrienne Farricelli CPDT-KA

We are used to seeing our dogs sniff with their powerful noses, but did you know that dogs have different sniffing styles when it comes to putting their powerful sniffers to work? In the dog world there is sniffing and sniffing, meaning that dogs resort to different sniffing styles to learn more about the world surrounding them. The dog’s ability to detect the direction of a track was of vital importance back in the olden times when they were hunting for prey or scavenging. Today, dogs are much cherished for their tracking, trailing, air scenting and scent discrimination abilities which are all helpful sniffing methods employed in several fields. So today, let’s discover more about these different sniffing styles in dogs.

Dog Tracking

In tracking, the dog lowers his nose and carries it close to the ground most of the time so to track any scents left behind from other animals or people. Many dogs are nowadays employed to detect the scent of mechanical environmental disturbance and broken vegetation caused by footsteps.

What smells are tracking dogs exactly following? It appears that crushed vegetation and disturbed ground tends to give off a different odor that dogs readily detect.

Since the dog is following the scent trail left by a human, it’s important that the dog stays always “on track.” When being trained or tested, tracking dogs are therefore penalized or even disqualified should they be straying too much from the track, explains Kat Albrecht, in the book “Dog Detectives.”

Considering that ground scenting dogs focus on foot steps and the effect of the weight of the person causing ground disturbances and crushed grass, this style of sniffing works best if the trail is still relatively fresh.

Fun dog nose fact: when a dog is calm and breathing normally, he breathes in an out about 15 to 30 times a minute. When he’s actively sniffing though, he inhales and exhales anywhere between 140 and 200 times a minute!

Example of Dog Foot Step Tracking (Love the Praise!)

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Dog Trailing

Trailing is often confused with tracking; however, the difference appears to be what exactly is being tracked. While in tracking the dog mainly focuses on following foot steps by detecting the scent of broken vegetation, in trailing, dogs focus on detecting flakes fallen off the surface of the skin.

It is estimated that a human loses about 40,000 skin cells per minute, explains Vivane Theby, a veterinary specialist for canine behavior and author of the book “Smellorama: Nose Games for Dogs.“Since these flakes are prone to drifting with the wind, dogs may not follow the exact path the person being followed used but may be just about several yards away.

In trailing, dogs will keep the head low to the ground or higher depending on how old the scent is and the weather conditions. For instance, when the scent is very fresh, the scent particles may still be suspended in air so the dog will keep the head high; whereas, when the scent is old, the scent particles would have fallen to the ground causing the dog to keep the head low.

Also, when the the sun is shining, warm air rises, and along with it, scent particles rise too so that the dog no longer needs to bring his nose to the ground. Both tracking and trailing dogs are often kept on a long line to prevent them from wandering away or outrunning their handlers in their eagerness to follow scent.

“Trailing is the most common way that dogs follow scent paths, by scenting the flakes of scurf shed by the body rather than the foot steps themselves.”~ Stanley Coren

“Tracking vs. Trailing — What’s the Difference? Tracking dogs follow footprints, whereas trailing dogs follow the scent wherever it has drifted, regardless of where the feet are placed (or not).~Jen Bidner

Did you know? After following a trail for some time, the dog’s sensory cells may “adapt” and cause what’s known as “nose fatigue.” By lifting the head from the ground for a bit or leaving the area, the dog may “reset his sense of smell” so that he can start from fresh again. When given a “fresh start,” scent dogs may be better able to pinpoint scents. (K9 Scent Training p. 77)

Dog Air Scenting

In air scenting, dogs are running with their heads kept up high in a straight line as they are going after scent molecules wafting in the air. This sniffing method is mostly used in disaster areas such as collapsed buildings.

Air-scenting dogs are also often used as avalanche dogs since they must focus on catching airborne scent from possible trapped victims rather than following a specific track. These dogs aren’t usually looking for a particular person, they’ll just follow any human scent which is why they work best for disaster areas.

There are dogs who specialize in finding live people and dogs who specialize in finding the dead (cadaver dogs, specialized in sniffing decomposing flesh). Weather can affect the dog’s ability to catch the scent with the best conditions being humid and with a light, steady breeze. If the scent is ever lost, air-scenting dogs will walk in widening circles in hopes of gaining it back.

Dogs often utilized for air scenting include German shepherds and Labrador retrievers. Generally, air scenting dogs will zig-zag back and forth and work without harness. These dogs may alert about their discoveries by performing a behavior such as barking or sitting.

Did you know? When dogs are air scenting, they perform one long inhalation lasting about 20 times longer than a normal breath and then exhale through the mouth. This allows the odor molecules to better reach the scent receptors in the dog’s olfactory epithelium, explain Dr. Resi Gerritsen and Ruud Haak in the book “K9 Scent Training.”

Watch this dog air scenting with nose up and running in circles to get the scent back.

Dog Scent Discrimination

In some lines of work, a dog’s ability to discriminate scents is fundamental for accomplishing certain tasks. These dogs must therefore specialize on focusing exclusively on a particular scent while ignoring others.

For instance, truffle dogs must learn from a young age to discriminate between the scent of truffles and other odors and same goes with dogs used to detect explosives or drugs at airports. Search and rescue dogs can also be asked to take things one step further by discriminating a particular human odor.

By letting these dogs sniff a particular scent article (a piece of clothing or an object touched by the missing person), these dogs attain an “odor image” and start the trail searching for that particular scent. Bloodhounds excel in this as they are capable of remembering the scent for longer periods of time, without the need for being repeatedly reminded of it.

Did you know? Interestingly, dogs can be trained to combine sniffing styles so that they can overcome obstacles. For instance, a tracking dog may lose track of a person if the person crosses a stream as they are no more foot steps to follow, but at those times they can rely on their ability to detect airborne scent.

References:

How Dogs Think, By Stanley Coren Free Press; 1st edition (August 3, 2004)
K9 Scent Training: A Manual for Training Your Identification, Tracking, and Detection Dog, By Resi Gerritsen, Ruud Haak, Dog Training Press; 1 edition (May 13, 2015)
Smellorama: Nose Games for Dogs, By Vivane Theby Hubble & Hattie; 1 edition (May 15, 2010)
Dog Detectives, By Kat Albrecht, Dogwise Publishing (November 1, 2007)
Dog Heroes: Saving Lives and Protecting America, Jen Bidner, Lyons Press; 1 edition (September 1, 2006)
PBS.org, The Bloodhound’s Amazing Sense of Smell, retrieved from the web on August 27th, 2016

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Eight Fascinating Ways Dogs Groom Themselves

August 26, 2016August 26, 2016 by Adrienne Farricelli CPDT-KA

Left to their own devices, dogs are quite efficient groomers making sure their coats are dry and well-maintained. Dogs might not meet our much more stringent standards when it comes to the grooming department, but they sure deserve an applause for the effort. Unless you own a high-maintenance dog that needs to see the groomer often, your dog will likely engage in several activities that are meant to keep his coat in good shape and remove any dirt and debris that shouldn’t be belong there. Following are eight fascinating ways dogs groom themselves.

Doggy Body Shake

You have likely witnessed the doggy body shake at one time or another. Your dog wakes up from a nap or has just finished rolling against the floor, he gets up and then shakes his whole body in a wave-like motion, starting from the head, then the whole body and then ending with a slight flutter of the tail.

Blessed with several nerve receptors located on their hair follicles, dogs are quick to detect any pressure or the sensation of something just not “feeling right” on their coat such as the presence of dust and debris.

A full body shake will therefore effectively remove any foreign material from the coat, especially after the dog has slept on a grassy area, dirt or hay as seen in the picture.

Doggy Rinse Cycle

We are all familiar with the doggy rinse cycle, that sudden complimentary shower of ubiquitous droplets we receive right after giving dogs a bath. Dogs surely know when their coats are wet, and they will shake their wet fur to expedite drying. A dog shaking the coat when wet may seem like a useless activity from our perspective considering that we have access to towels nowadays, but turns out that dogs know what they’re doing and Mother Nature knows best.

In Nature, getting wet in cold weather can mean serious trouble, considering that animals can easily face hypothermia if unable to dry up quickly. By oscillating their bodies, furry animals are able to dry themselves within minutes, explain Andrew K. Dickerson, Zachary G. Mills and David L. Hu in a study published in the Journal of the Royal Society Interface. This quick body shake is therefore far more energy efficient than carrying a heavy load of fur drenched with water and shivering to generate enough heat so to allow the water to evaporate.

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Did you know? The average dog is estimated of being capable of removing about 70 percent of water from his fur in four seconds. Quite remarkable, don’t you think?

Doggy Brushing and Combing

Dogs are covered in fur and their coat is kept shiny and healthy courtesy of several oil glands. When dogs nibble on their coats or scratch, they are relying on natural ways to stimulate those oil glands by either passing the nails or their tongue and teeth through the coat. It’s not unusual to see a dog sometimes gently nibbling on his fur. This nibbling action using the incisor teeth in a comb-like fashion is meant to remove any dirt, debris or burrs caught on the dog’s coat.

“Scratching is a natural way to stimulate the oil glands of the coat. However, be aware that excessive scratching suggests the presence of a skin irritation.” ~Dr. Bruce Fogle

Doggy Pedicure

Think only people trim nails for their dogs? Think again. Some dogs will take grooming to the next level and will trim their nails on their own by simply chewing them. Many owners are aware when their dogs do this as they make a distinct chewing noise.

“Chewing their own toenails can be a normal part of self-care for some dogs, who do it as part of their grooming ritual. However, it can also be a reason to go to the vet, who can tell you if there is an underlying problem.” ~Tracie Hotchner

Doggy Toilet Paper

Deprived from opposable thumbs and manual dexterity, dogs must rely on their tongues to groom themselves, and that includes their private areas. It’s one of the first things newborn puppies experience: unable to eliminate on their own, momma dog uses her tongue to stimulate them to go potty and cleans after them the same way.

Once grown up, dogs learn to use the same technique for cleaning up those hard to reach places. Courtesy of their flexible backbone, even large dogs are capable of turning and reaching their private areas for a quick lick. Keep an eye on your dog though if this seems to happen too often: a dog licking those private areas too often may be having discharge or irritation. Excessive licking of the under-the-tail area could be a sign of a urinary tract infection, an anal gland problem, and in intact female dogs, a sign of going into heat.

Four-Legged Groomers

Sometimes, dogs may take advantage of having other doggy friends who are willing to do the grooming. Among animals it’s known as “social grooming.”

Dogs may be lying side-by-side when one dog may start gentling nibbling one dog and the other may exchange the favor in a cute grooming session involving mostly the ears, eyes and mouth area.

“These behaviors are done by individuals closely associated to each other,” points out veterinarian Dr. Bonnie Beaver in the book “Canine Behavior: Insights and Answers.”

Doggy Massage

While dog friends are great to get those ears, eyes and face groomed, the back is often a body part that is neglected. It feels good to get a massage on the back, and one of the best ways for Rover to do this is by rubbing against surfaces such as walls, furniture and people’s legs.

Another option for a dog to get some grooming is by rolling on his back. Before dog grooming became popular, dogs had to figure out a way to remove all those dead hairs from their coats when shedding time was in full swing.

What better way to accomplish this than by rolling on their backs? By rolling, dogs get to groom themselves by shedding some of their undercoat, explains Karen L. Overall, in her book ” Clinical Behavior Medicine for Small Animals.” A rough carpet, dried grass or hay may be appealing areas to roll on so to get a nice a back rub. Even best, why not try asking the owner for a nice back massage? Here are five ways your dog may be asking for one.

Doggy Wash Cloth

While you use a wash cloth to wash your face, your dog may use his tongue and paws instead. Yes, some dogs seem to borrow kitty’s face licking techniques when it comes to facial cleaning. Dogs will lick their paws and then pass those paws on their faces making sure to reach all little those nooks and crannies in their faces. Watch this cute dog washing the face like a cat.

Dogs Still Need Grooming!

Just because a dog is chewing his toenails and rolling on the carpet doesn’t mean that he’s capable of doing all the grooming himself. Actually, often to the contrary, when dogs self-groom themselves it’s often a sign that they need some help. Those toe nails may be getting too long and perhaps he is shedding a lot of hair and could benefit from some brushing. Grooming a dog is important to provide general cleanliness of the dog, but also for the purpose of monitoring the dog’s health by checking for any cuts, lumps, bumps and signs of possible parasites. Not to mention that grooming also play a role for forging a closer bond between dog and owner! A win-win! So don’t let Rover take his grooming needs into his own paws, help him out and lend him a helpful hand!

References:

Clinical Behavioral Medicine For Small Animals, by Karen Overall, Mosby (Feb. 1 1997)
Canine Behavior: Insights and Answers, By Bonnie V. G. Beaver, Elsevier Health Sciences, Nov 11, 2008
If your dog could talk, by Bruce Fogle, Dorling Kindersley, 2006

Photo Credits:

Flickr Creative Commons, Lee Haywood Scratching, Taken during the Mela Weekend at Nottingham’s Arboretum Park. CCYBY2.0

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30 Fascinating Differences Between Wolves and Dogs

April 5, 2017August 19, 2016 by Adrienne Farricelli CPDT-KA

A common question people ask is what is the difference between dogs and wolves? The answer is there are many differences and it is therefore wrong to assume that dogs are just wolves sharing our living rooms! Sure, dogs and wolves share 99.96 of their genes, and since they have the same amount of chromosomes (to be exact, 78 arranged in 39 pairs) this makes them capable of mating and even giving life to offspring; however, this 0.04 percent difference is enough to set wolves and dogs quite distinctly apart. Wolves and dogs are not only different from a physical standpoint but a behavioral one as well, not to mention differences in the ways they develop, form social bonds and reproduce. Following are 30 fascinating differences that sets dogs and wolves apart.

Physical Differences Between Wolves and Dogs

1) Variability/Uniformity. Sure, there are several dog breeds that look like wolves out there, namely Siberian huskies, Alaskan malamutes, German shepherds and many more, but Chihuahuas, beagles or a dachshunds are sure a far cry from looking like wolves! There’s no denial over the fact that dogs are the most varied species on earth coming in all sorts of shapes, colors and sizes, but wolves, on the other hand, are quite uniform when it comes to appearance.

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2) Dogs have a head that is smaller than wolves. Generally, a dog’s head is 20 percent smaller than the head of a wolf.

3) Dogs have smaller brains compared to wolves. It is estimated that wolves have a brain that is around 30 percent larger than the brain of a domesticate dog.

4) Dogs have smaller jaws compared to wolves. Wolves need strong jaws so they can to crush bones so to reach the soft marrow, which brings us to number 5…

5) Dogs have the same type of teeth as wolves and even the same number (42). Both wolves and dogs have 20 teeth in the upper jaw and 22 in the lower jaw. Dogs however have smaller teeth compared to the teeth of wolves.

6) Dogs not only have smaller teeth, but their bite forces are weaker. Wolves have phenomenal jaw strength that according to Barry Lopez in Of Wolves and Men has a “crushing pressure of about 1,500 (lbs/square inch) which is a whole lot if compared to the average 740 (lbs/square inch) crushing pressure of a German Shepherd.

7) Dogs tend to have eyes that come in several colors. We have dogs with brown eyes, blue eyes and even one eye of one color and one eye of another. Wolves tend to have eyes of various shades of yellow to amber, but never brown.

8) Dogs have a prominent stop, the indentation in the dog’s skull most prominent when the dog’s head is seen by profile. Wolves don’t have such a prominent stop; rather, their foreheads are pretty straight from head to nose.

Developmental Differences Between Dogs and Wolves

9) Generally, dogs are slower to develop compared to wolves. According to Alexandra Horowitz, puppies open their eyes around two or more weeks; whereas in wolves they open as early as 10 days.

10) Dogs enter the critical socialization period at four weeks, while wolves begin much earlier at two weeks. According to a study conducted by Kathryn Lord, wolf pups were found to be already walking and exploring at 2 weeks of age even though still blind and deaf; whereas, dog pups begin the socialization period at around 4 weeks when they already can see, hear and smell.

11) Dogs have a longer primary socialization period compared to wolves. This offers them the advantage of having more time to become accustomed to interactions with people and their surrounding environment.

12) Dogs unlike wolves retain juvenile characteristics even as they become adult (neoteny). These characteristics include large eyes, shorter muzzles, bulging craniums and floppy ears.

Behavior Differences between Dogs and Wolves

13) Dogs are domesticated and can be trained. Wolves can be somewhat trained, but they cannot become domesticated.

14) Other than retaining juvenile physical traits, dogs also retain juvenile behaviors compared to wolves. Dogs are prone to whining even as adults, while adult wolves seldom whine.

15) Dogs are predisposed to barking for various reasons, while adult wolves tend to seldom bark. Wolves though rely on many other forms of vocal communication and they use their signature howl for long-distance communication.

16) In dogs, play behavior is more exaggerated than in wolves and it’s retained into adulthood. While adult wolves may occasionally play, play behaviors in dogs are more easily stimulated.

17) When dogs are given a puzzle to solve, dogs will often look at their owners for guidance. Wolves on the other hand will try to solve the problem on their own.

Hunting Differences Between Dogs and Wolves

18) Coat color in dogs is very varied and their coat colors no longer play a main role for camouflaging in their surroundings. In wolves, coat color is still important for blending in their surroundings and it’s therefore limited to white, black, grey, to red and tawny brown.

19) In dogs, the predatory sequence in several breeds has been truncated which comes handy to the shepherd and hunter. Dogs may therefore eye, stalk, chase, but without killing and ingesting. Wolves need to go through the entire predatory sequence from start to finish instead in order to survive.

“Wolves kill prey, while dogs live in partnership with humans…”~Kathy Sdao

Reproductive Differences between Dogs and Wolves

20) Dogs were and continue to be selectively bred so to help suit humans purposes for work and companionship. Humans choose the best specimens to breed (hopefully!). Wolves reproduce through natural selection through Mother Nature’s “survival of the fittest.”

21) Domestication in dogs has ameliorated a female dog’s ability to reproduce. Living in the safety of a home and with the help of a breeder, litters of pups have a higher chance of surviving. Wolf pups instead must endure many challenges.

22) Dogs tend to reach sexual maturity around 6 to 9 months of age. Wolves instead reach sexual maturity around 18 to 24 months of age.

23) Female dogs (besides some exceptions) generally go in heat two times a year. Wolves go into heat only once a year.

24) Female dogs may go in heat at any time of the year. Wolves are seasonal breeders, going into heat in the spring so their offspring have time to develop and become stronger before winter.

25) Female dogs give birth in whelping boxes and their owners provide their puppies with “puppy mush” to help them transition into eating solid foods. Mother wolves build a den to raise the pups and will regurgitate their meals to help wean the pups.

Social Differences Between Dogs and Wolves

26) Most domesticated dogs live among humans nowadays, so they can be considered members of human social groups, explains Horowitz. Their social group include their human family, other dogs, and other pets living within the household. Wolves on the other hand, live in packs and their social group comprises the breeding pair, its offspring, and several relatives. “Wolves packs are families, not groups of peers vying for the top spot… They are not alpha dominants any more than a human parent is the alpha in the family, ” points out Horowitz.

27) Generally, dogs are accepting of other dogs and will continue to socialize for the rest of their lives, even though some dogs become more reserved during adolescence and some obvious exceptions. Wolves instead tend to form tight family units and are generally not accepting of stranger wolves.

Over time, we have adapted and designed dogs to fit us and our world, and it should be strongly emphasized that they are separate to and different from wolves. We do not look at the ape world to show us how to teach our children how they should behave…we must afford our dogs the same courtesy of treating them as the species they are, and not as wolves in dog’s clothing.”~Toni Shelbourne

Other Differences dog sit

28) Dogs now live into old age when living among humans. According to Egenvall and colleagues (2000) data from insured dogs has revealed that an estimated 65 percent of domesticated dog living in a household will still be alive after 10 years of age. Old wolves instead are quite a rarity in the wild.

29) Various tests conducted by Brian Hare revealed that puppies were spontaneously adept at reading human gestures, whereas wolves were not.

30) Dogs are generally good at adapting to changing situations; whereas wolves are wary and do not adapt well to novelty and this tendency carries on even when raised in captivity.

As seen, even though dogs and wolves are genetically similar, we must remember that there are at least fifteen thousand years (or many more) separating them and therefore dogs are a far cry from being the socialized wolves some people still tend to portray.

” We have enough science on dog behavior and the principles of learning that dog training should not be based on “what my daddy did” or some method arising from misinterpreted wolf behavior. Dogs are not wolves. They don’t act like wolves – and frankly we don’t want them to.” Lore I, Haug, DVM, MS, DACVB,

References:

Inside of a Dog: What Dogs See, Smell, and Know, By Alexandra Horowitz, Scribner; a edition (September 28, 2010)
Lord, K. (2013), A Comparison of the Sensory Development of Wolves (Canis lupus lupus) and Dogs (Canis lupus familiaris). Ethology, 119; 110-120
The truth about wolves and dogs, By Toni Shelbourne, Hubble & Hattie (November 20, 2012)
Dog Behaviour, Evolution, and Cognition, By Adam Miklosi, Oxford University Press; 1 edition (February 15, 2009)
The Genius of Dogs: Discovering the Unique Intelligence of Man’s Best Friend, By Brian Hare, Vanessa Woods Oneworld Publications (6 Feb. 2014)

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Surprise, Dogs May Have Taste Buds for Water Too!

July 30, 2016July 30, 2016 by Adrienne Farricelli CPDT-KA

Just like us, dogs are equipped with taste buds, those special taste receptors located on the upper surface of the tongue. Don’t be too impressed though by the way Rover licks his chops and wolfs down those tasty morsels you offer him: if there was ever a competition between humans and dogs over who had more taste buds, our dogs would rank rather poorly. With a mere 1700 taste buds compared to our astounding 10,000, contrary to what dog food commercials may try to make us think, the number of a dog’s taste buds aren’t really that impressive. However, dogs seem to come back as winners when it comes to tasting meat and water. Pass me down that bottle of Fiuggi water, Rover would you?

Sophisticated Taste Buds

Dogs may have only 1700 taste buds, but Mother Nature ensured that those taste buds were specialized so to match the needs of the dog’s evolutionary past and present time. In addition to having taste buds specialized for detecting sweet, salt, sour and bitter flavors, dogs have sophisticated buds specifically crafted for appreciating meats. These special taste receptors help dogs detect meat, fats and other meat-related chemicals, explains Gary M. Landsberg, Wayne L. Hunthausen and Lowell J. Ackerman in the book: Behavior Problems of the Dog and Cat.

On top of boasting buds for meat, as mentioned, it looks like dogs may allegedly have special taste buds. Where are these taste buds located? These dogs’ taste buds for water appear to be mostly distributed on the tip of the dog’s tongue, the actual part that curls when dogs lap water from a bowl, according to Cummings School of Veterinary Medicine at Tufts University. So while you will never find Rover competing at a wine-tasting contest, he might make a good luxury water connoisseur!

Did you know? While it may seem like us humans can taste water, what we really taste are all the chemicals and impurities in the water.

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Balance of Fluids

It appears that not all researchers agree that it is possible to taste water, so some studies are sure needed on this before claiming it as a fact. The main issue that researchers argue about is the ability to taste hydrogen and oxygen considering that these two components likely do not have any properties that could be tasted.

A question may at this point arise though: why would it be important for our dogs to have taste buds for water? Some researchers believe that dogs were likely gifted with specialized taste buds for appreciating H2O because of their diets. For an animal whose ancestors relied mostly on eating meat, it might have been important to make sure that Rover’s fluids stay in balance considering that meat is high in sodium.

” This area responds to water at all times but when the dog has eaten salty or sugary foods the sensitivity to the taste of water increases… It certainly appears that when these special water taste buds are active, dogs seem to get an extra pleasure out of drinking water, and will drink copious amounts of it.” ~ Stanley Coren

“Eau De Toilet”

If dogs really have taste buds for water, why on earth do dogs drink water from the toilet bowl? Perhaps it’s a matter of freshness. How many time do you fill up your dog’s water bowl? And how many times do you flush the toilet? Most likely, that toilet is flushed a whole lot giving Rover access to fresh water that is kept nice and cool courtesy of the “porcelain” throne. Generally, given the choice, dogs would instinctively choose running water over stagnant water which may harbor potentially harmful bacteria, molds and algae.

While having a “potty mouth” may seem like an innocent habit when the toilet bowl is just filled up with water, the practice can become potentially dangerous when the water is treated with bathroom cleaners, bleach, Lysol and other products that can cause chemical burns to the dog’s mouth, tongue and esophagus, warns veterinarian Dr. Primovic in an article for Pet Place. Best to therefore keep that toilet bowl down and keep the water bowl always full with some fresh, “tasty” water so Rover can savor it with gusto.

“Taste buds for water or not, we’ve all seen dogs lap up water with gusto long after it seems they would have already quenched their thirst.” ~Tufts University

Ever wondered why dogs are messy drinkers? Watch the video above and here’s an answer that will further”quench” your curiosity:

“The everyday experience of dogs as messy drinkers results from the backward curl of the tongue, which increases the size of the water column and thus enables dogs to drink more per lap than with a straight tongue.” ~Gart, Sean, et al.

References:

Behavior Problems of the Dog and Cat, By Gary M. Landsberg, Wayne L. Hunthausen, Lowell J. Ackerman, Saunders Ltd.; 3 edition (December 28, 2012)
Gart, Sean, et al. “Dogs lap using acceleration-driven open pumping.”Proceedings of the National Academy of Sciences 112.52 (2015): 15798-15802.
Psychology Today, How Good Is Your Dog’s Sense of Taste?, by Stanley Coren, retrieved from the Wed on March 4th, 2016.

Photo Credits:

Flickr, Creative Commons, Lulu Hoeller, Dog Drinking Toilet, Every dogs dream – a working toilet fountain in the back yard, CCBY2.0

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