Humans may have a surprising evolutionary advantage: Expressive eyebrows


A man raises his eyebrows
Animals

Scientists still aren’t sure why early humans had such weird skulls—or why we don’t.

It’s one of the first things you notice when you look at archaic humans in a textbook or museum. Just above the eyes rests an imposing feature, a prominent brow ridge…
via Popular Science "https://ift.tt/2GKgNWe"

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