Surprising Dog Anatomy Information

...  in the definitive guide to raising a happy, obedient puppy. Photos. My Smart Puppy: Fun, Effective, and Easy Puppy Training (Book & 60min DVD) So different are they, that you may be tempted to think they are not even closely related, but you’d be wrong. In fact all dogs, from a Great Dane to a teacup Yorkie and everything in between, are virtual anatomical copies of each other. It is pretty much common knowledge that all domestic dogs share a common ancestor, the wolf. Now, through selective breeding we may have tinkered with the appearance of the dog, but under the skin his anatomy is still virtually identical to the wolf. Like the wolf, a dog has; * A skeletal structure designed for running and pursuing their prey. * Flexible front legs with disconnected shoulder bones that play the part of shock absorbers when the dog is running. * Heavily muscled hind legs allowing for a burst of speed off the mark, as well as for leaping on prey. * Small feet with fused wrist bones ...  them to make rapid changes of direction when running at speed. * A cardiovascular system that gives them the stamina to stay on the trail of prey for hours if necessary. * A tail which allows them to signal other pack members – vitally important for co-operative hunters * Razor sharp teeth set in a powerful jaw that gives them the ability to easily dispatch prey. More Interesting Facts About A Dog’s Anatomy Most of the physical differences we see between wolves and dogs are due to selective breeding. But there is a body of evidence that suggests that many of the changes actually occurred spontaneously. Despite the many variants in coat colors, all dog coats except black are a variant of yellow. Black coats are down to a mutation of the beta defensin gene. Dogs regulate their body temperature via a complex system that includes, panting, sweating through the pads of the paws, and a “heat exchanger” that prevents body heat from reaching the brain. All dogs have ...