QuickCheck: Are humans as hairy as chimpanzees?

AS OUR human ancestors evolved, they developed an interesting feature unique among primates: humans are the only"naked apes", meaning we lack the dense body hair as seen in chimpanzees, orangutans or gorillas.

Humans have about five million hair follicles across our entire body, or about 60 hairs per square centimetre of skin. This is not much less than other apes. While we are out here wondering why chimps are so hairy, they are probably wondering why we sweat so much. A more recent paper also found that the short and fine vellus hairs play a role in parasite prevention, which might explain why humans did not evolve to become fully hairless.

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