Add Yahoo as a preferred source to see more of our stories on Google. Human infants’ helplessness may help explain cooperation, learning and social development, researchers argue. (CREDIT: ...

Add Yahoo as a preferred source to see more of our stories on Google. New research finds some small primates face birth canal constraints as severe as, or greater than, those seen in humans. (CREDIT: ...

For centuries, childbirth’s pain was explained as punishment; more recently, as the evolutionary price of walking upright and bearing large-brained babies. But if difficult birth occurs across ...

A human baby arrives in the world in a strange state, eyes open, ears working, brain growing fast, yet unable to move through the world in any meaningful way. That mix is the heart of a new argument ...