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ZME Science on MSNHuman ancestors probably lost their tails 25 million years ago — and a strange ‘jumping gene’ may explain whyThe human tailbone looks identical across individuals, another hint that other mutations may be involved in its development.
yet ours appear to be getting crowded out as the human jaw gets smaller with a soft diet. However sometimes evolution finds a good use for vestigial organs. The coccyx or tailbone, formerly used ...
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