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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 ...
Learn more about the gene linked to the evolutionary loss of human tails, and how, in rare cases, some people are still born with them.
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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