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Why does facial hair and head hair grow so long where as fur in animals stays constant What is the evolutionary advantage?
Wiki User
∙ 12y ago
well this is kind of an ambiguous answer but im sure it has to do with "blueprints" in the DNA. the DNA stores all of the info about what grows and how stuff grows etc..
Also there are roots in your head when you are born and just like a plant those roots have to grow something and it grows something out your head.
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The evolutionary reason that people have long hair is because it covers the neck in cold weather and preserves heat.
We are better to ask and answer in terms of adaptive, rather than "evolutionary" advantage. Species adapt, but never actually become something different. At the end of it evolution is a world view, which strains credulity, offered to explain away the obvious.
Wiki User
∙ 12y ago
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