Some dog breeds nearly entirely dependent on human performed c-sections to reproduce. https://www.ncbi.nlm.nih.gov/pubmed/20136998 We will go there too probably.pic.twitter.com/JHYTwiTdBo
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that same paper also shows that head size has decreased in the past 10ky. But head size has increased in the past 100
do you know if we fully gained back our head size from 10 ky? Or did this increase only give some of it back?
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