Why do dogs stick out their tongues when they are hot?

Reason: Dogs, wolves and other canines do not have very developed sweat glands in their bodies. Unlike humans, they cannot regulate their body temperature through sweating. Once their bodies heat up, it is difficult to lower their body temperature, so dogs are very afraid of heat.

As long as the dog feels a little hot, he will open his mouth, stick out his tongue, and gasp for air. This can secrete a large amount of saliva to replace sweat. Dogs dissipate heat and lower their body temperature by evaporating their saliva.

Particularly, dogs with small heads, such as pugs, trumpet dogs, poodles and Chihuahuas, are not good at regulating body temperature because of their short respiratory organs and are particularly afraid of heat, so you should pay more attention. Extended information

Things you don’t know about dogs

1. When a picture of a dog is displayed on the computer screen, the dog will look at it with great interest, but If you change it to a landscape picture, the dog will find it boring.

2. Austrian scientists have proven that if a dog finds that other dogs are being treated better, it will also feel unfair, but it will pretend to be disdainful.

3. Korean scientists have cloned four beagle babies, which carry fluorescent protein genes. So, they sparkle when exposed to UV light.

4. Dogs and their owners are indeed similar. Researchers at Bath Spa University in the UK asked volunteers to match photos of dogs and their owners (choose one from four) and found that the accuracy rate exceeded half.

Baidu Encyclopedia-Dog