No. Not every animal has hair because frogs and snakes and etc... don't have hair.
Just don't color you animal's hair. Please...
well all mammals have to have hair to be a mammal so their isn't just one animal that has hair
you need to go to college and learn about animal hair because a hair boiler is someone who boils animal hair!nasty huh...........
Spider
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The part that's attached to the human or animal
An animal that lives in water and has hair is a beaver. Platypus also have two layers of fur coating them.
Because the environment is so hot that if they had hair, it would just make them unnecessarily warmer. It doesn't always benefit an animal to always have hair.
ummm................ I'm pretty sure that in the winter animal hair grows quickly than human hair. but then in summer human hair increases so it is about the same rate.
The dog is obviously a land animal with fur, for fur and hair have different atom structures.
The purpose of hair for any animal is thermal regulation.