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Dog Word of the Day: Dolicocephalic

What exactly does the word "dolicocephalic" mean? This word may sound a bit complicated, but once we break it into smaller components, it becomes easier to understand. Chances are, you might even own a dolicocephalic dog breed too and you don't even know it! This term though isn't restricted to the dog world only, there are also many dolicocephalic cats and some dolicopehalic rabbits too out there! So let's take a closer look into this word and discover some intriguing facts about the dog word of the day: "dolicocephalic."

A Lesson in Etymology 

What does the word dolicocephalic mean? Let's take a look at the history of this word. Merriam Webster tells us that the word derives from the Greek word "dolichos" which means long and "kephalos," which means head.

If you put the two words together, you have "long head," therefore, dolicocephalic in the dog world pertains to certain types of dogs where the length of the head is greater than its width.

This is the total opposite of dogs who arebrachycephalic, meaning short-headed.

Dolicocephalic: long-headed

Brachycephalic: short-headed

What Teeth You Have!

greyhound dolicocephlic

Dogs with long heads may share some interesting traits that makes them quite different than other dogs.

If you look at their teeth, their longer jaws can make them appear as if they have gaps between one tooth and another. This is called "diastemata" which means "a space or gap between two teeth."

In some cases, the space may be so wide that to some people it may appear as if they are missing teeth, but they are not, explains Dr. Cedric Tutt, a Veterinary Specialist in Dentistry in South Africa in the book "Small Animal Dentistry: A Manual of Techniques."

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dolicocephalic

What Eyes You Have!

Discover More

dog window

Medications for Dogs With Separation Anxiety

There are several medications for dogs with separation anxiety, but in order to be effective, they need to be accompanied by a behavior modification plan. With dogs suffering from separation anxiety to the point of it affecting their physical and emotional wellbeing, it's important tackling the issue correctly. Veterinarian Dr. Ivana lists several medications for dogs with separation anxiety.

old dog

Ask the Vet: Help, My Dog Walks as if Drunk!

If your dog walks as if drunk, you are right to be concerned. Dogs, just like humans, may be prone to a variety of medical problems with some of them causing dogs to walk around with poor coordination. Veterinarian Dr. Ivana shares a variety of reasons why a dog may walk as if drunk.

schnauzer

Are Miniature Schnauzers Hyper?

To better understand whether miniature schnauzers are hyper it helps to take a closer look into this breed's history and purpose. Of course, as with all dogs, no general rules are written in stone when it come to temperament. You may find some specimens who are more energetic and others who are more on the mellow side.

Many dogs with dolicocephalic heads share some common traits: they may have a history of being selectively bred to have an exceptional  sighthound eye sight and are very fast.

Sight hound breeds like the saluki, borzoi, greyhound and Afghan hound, were selectively bred for catching fast prey, therefore it shouldn't be surprising if their facial conformation allowed a wider field of vision so they could better spot prey.

Their almond-shaped eyes are set wide apart. It has been noted that distribution of retinal ganglion cells is correlated with nose length, something particularly important in sight hounds as they needed to be scanning the horizon for prey over vast open landscapes.

A Nose For Problems

martingale collar greyhounds

According to the book "The Dog and Its Genome," dolicocephalic dog breeds are prone to problems related to the shape of their heads such as nasal tumors and mycotic rhinitis.

Another potential problem dolicocephalic breeds may be predisposed to is aspergillosis, a respiratory infection that is typically localized to the dog's nasal cavity and known for causing lethargy, pain and ulcerations on the nostrils, sneezing, nasal discharge and nose bleeds, according to the Merck Veterinary Manual.

Did you know? Because sight hounds have narrow heads, they can easily slip out of regular buckle collars.

idea tip

Many trainers suggest using martingale collars (also known as greyhound collars) for dolicocephelic dogs. When fitted correctly, these collars work well as they're less likely to slip over the dog’s head, explained the late internationally-acclaimed veterinarian, animal behaviorist, Dr Sophia Yin.

References:

  • MillerP. E., MurphyC. J
    , 1995 Vision in dogs. J. Am. Vet. Med. Assoc.207: 1623–1634.
  • McGreevyP, GrassiT. D, HarmanA. M
    , 2004A strong correlation exists between the distribution of retinal ganglion cells and nose length in the dog. Brain Behav. Evol.63: 13–22
  • The Genetics of Canine Skull Shape Variation, Jeffrey J. Schoenebeck, Elaine A. Ostrander , GENETICSFebruary 8 , 2013 vol. 193 no. 2 317-325 (Early Online February 1 , 2013).

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