Why the mammal have a Hairs
A lots of mammal have a hairs, the first utility, it's protect their body of the natural. Each mammal must take her body of 36°C - 40°C, so the hairs are a very good insulating.
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Why mammals have hair
Many mammals have hair. The primary reason is to protect their body from the natural environment. Each mammal must maintain its body temperature in the range 36°C - 40°C, and hair has very good insulating properties.Want to progress faster?
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