Study on dogs paws

Japanese researchers have managed to resolve an issue that has long concerned the zoologists in several countries: namely, how dogs sit on ice for extended periods of time without their feet and toes freeze.

Researchers Yamazaki Gakuen University in Tokyo have discovered that dogs feet and toes are provided with a network of glands that removes a very high fat secretion, preventing frostbite.

If people are exposed to very cold, vasoconstriction of blood vessels in the extremities of the body reduces the blood flow in those areas.

The team led by Dr. Hiroyoshi Ninomya used a scanner attached to an electron microscope study of 4 dogs mature feet. Scientists have discovered that the arteries that send blood to the feet of dogs are coupled with a network of small veins, the whole system acting as a heat exchanger., Serving to cool heat coming from the feet before sending back the body.