AI Summary

Human childbirth is commonly viewed as uniquely difficult and dangerous. The reason: The combination of bipedalism and large brains creates a tight fit between the baby and the birth canal. Research at the University of Vienna has now shown that many other mammals—from domestic livestock to wild species—face similar birth problems and mortality. In some species, these complications even occur as often as in some human populations, such as hunter-gatherers without modern medical care. The findings suggest that difficult childbirth is not uniquely human. The study is published in Biological Reviews.

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