What does a dog's tongue do?

Dogs stick out their tongues to emit hot and humid gases to lower their body temperature. Because dogs only have a small amount of sweat glands between the soles of their feet and claws, they can't sweat and cool down like people. In addition, dogs need to lick their tongues to quench their thirst when they are in sharbat. On average, they lick their tongues more than 65,438+000 times for every glass of water they drink. It also has the function of stirring food and tasting its taste.

Dogs' tongues and human tongues have different functions. Their tongues have some special functions. Let's talk about the function of dog tongue first.

0 1 Dogs stick out their tongues to emit hot and humid gases to lower their body temperature. Because dogs only have a small amount of sweat glands between the soles of their feet and claws, they can't sweat and cool down like people. In addition, dogs need to lick their tongues to quench their thirst when they are in sharbat. On average, they lick their tongues more than 65,438+000 times for every glass of water they drink. It also has the function of stirring food and tasting its taste.

Dogs are domesticated by wolves. As early as the era of hunting and gathering, people have domesticated dogs as hunting assistants. So dogs are the earliest domesticated domestic animals. Dog bones have been unearthed in Cishan, Wu 'an, Hebei, Peiligang, Xinzheng, Henan, Hemudu, Yuyao, Zhejiang, which proves that it has a long history of domestication.

The dog-shaped raccoon dog unearthed in Sanlihe, Jiaoxian County, Shandong Province, is vivid and lifelike, which enables us to see the morphological characteristics of domestic dogs in the Neolithic Age. The dog bones unearthed from Anbanpo site in Xi 'an, Shaanxi, have small skulls, protruding frontal bones, slightly cracked teeth and curved horizontal edge of mandible, which is quite different from the present North China Wolf, indicating that the history of human domestication of dogs is indeed very early.