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首页> 外文期刊>The journal of maternal-fetal & neonatal medicine >Is the duration of human pregnancy decreasing? A vision of Darwinian medicine
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Is the duration of human pregnancy decreasing? A vision of Darwinian medicine

机译:Is the duration of human pregnancy decreasing? A vision of Darwinian medicine

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摘要

Why do actual females have a 9-months-pregnancy? Here, we hypothesize that the pregnancies of prehuman species were longer than currently (10 or 11 months), and that anatomical and metabolic changes, by increasing the in-utero size of the fetal brain, selected groups with premature delivery, low-calcified and/or not welded cranial vault bones (permitting deformation during the expulsion), until reaching a current pregnancy duration of 9 months. ? 2020 Informa UK Limited, trading as Taylor & Francis Group.

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