[ad_1] PARIS – The size and shape of women's birth channels vary according to the region of the world in which they live, but most medical textbooks are based on a European …
Read More »Birth channels are different around the world, countering a long-standing theory of evolution | Science
[ad_1] By Erica TennenhouseOctober 23, 2018, 7:01 pm The shape of a mother's birth canal is a tussle between two opposing forces of evolution: it must be wide enough to allow our …
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