According to a new study, chimpanzees, like humans, must contend with a confined bony birth canal when giving birth. In humans, the problem was exacerbated by our unique form of upright walking since ...
Image courtesy of Paola Cerrito and Timothy Bromage. Depending on whom you ask, giving birth can be a miraculous, horrifying, incredible, painful, or primal experience. In most cases, it transforms ...
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