Golden Retriever
If you were asked to walk barefoot on the snow, you would probably not even You won't be able to support it for a minute, but if it were a dog, they wouldn't feel cold even if they played for an hour. Why can dogs do this?
The latest research shows that the special blood circulation system of the dog's paws protects the temperature of the dog's paws from being too low. Simply put, the dog's arteries and footpad blood vessels are "neighbors". When the dog steps into the snow, the temperature of the footpad blood vessels also drops, and as a qualified neighbor, the arteries will transfer the heat. In addition, because the returned blood is warmed, the dog will not feel cold. This thermal insulation system has also been demonstrated in animals such as penguins and Arctic foxes. Scientists call this special blood circulation system the "countercurrent thermal exchange system."
It turns out that many animals living in the snow have such a "system". In addition to this special system protection, some animals can also maintain a normal body temperature through other means, such as penguins. It prevents frostbite by changing the blood flow of the feet. The thick and dense coating on the Arctic fox's feet can keep the foot pads away from the cold earth.
However, even if the dog is not afraid of walking in the snow, the owner cannot take it lightly, because during the long maintenance process, many pet dogs have adapted to a comfortable indoor life. If the owner wants to wear the dog When dogs have a snowball fight, it is best to take good precautions for the dog. For dogs that do not like to wear shoes, the owner should control the time of play to avoid freezing the dog.
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