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Humans are born with tails—but lose them before birth—and scientists still don’t know why we have them at all
Early in pregnancy, something surprising happens. Every human embryo develops a tail. It is not symbolic or imagined. A real ...
The human tailbone, also known as the coccyx, is a vestigial feature, meaning it has lost its original function in the body over the course of evolution. The human tailbone is a leftover feature from ...
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