Childbirth is not uniquely difficult to humans

The tight fit of a baby's head through a mother's birth canal, which causes great difficulty in childbirth, is not unique to humans, as previously understood. Instead, some small-bodied primate babies have heads almost twice ...

Online calculator shows how drastically mowing affects insects

How many insects and spiders live in 1 square meter (11 square feet) of meadow? What impact do humans have on this biodiversity in mowed meadows, lawns and roadside verges? A new online tool answers these questions: the Insect ...

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