There are three types of hairless dogs: 1. Chinese Crested Dogs, also known as Chinese Hairless Dogs. They have almost no hair on their bodies and have the iconic crest on their heads; 2. Peruvian Hairless Dogs , relatively small in size, with only a little hair on the head, paws and tail; 3. The Mexican Hairless Dog, one of the earliest dogs in the world, has only a handful of sparse hair on the top of its head.

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Chinese Crested Dogs are not Chinese dogs. They are just called because they have crests on their heads, which look like the hats of officials of the Qing Dynasty in China. Chinese crested dog. The central system in the body of Chinese Crested Dogs can automatically regulate body temperature, so although they have very little hair on their bodies, they are very adaptable to hot and cold.