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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 extension forms at the base of the spine, complete with vertebrae. Later, ...
Great question, and it gets to the heart of what we are as humans. Think about your own family – do you have cousins? If so, you and your cousins share grandparents and these are your common ancestors ...
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