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How (Most) Humans Lost Their Tails - From Fish to Tetrapods to Apes to Homo Sapiens

How (Most) Humans Lost Their Tails - From Fish to Tetrapods to Apes to Homo Sapiens

Did you know that human embryos early in development have tails that later fail to grow for a lack of signaling from the genes? We end up with the coccyx at the end of our spines that protrudes a bit...