Why do some animals have hair their body?
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animals have hair on their bodies because they help in protection from exterm cold.
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Mammals are warm-blooded, which means that we require a high internal body temperature to survive. Very few animals other than mammals are warm-blooded. ... A layer of hair or fur even as thin as the hair on our arms can trap air and create an insulating layer between our skin and the colder temperatures outside.
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