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: ...

Human fingers and toes do not grow outward; instead, they form from within a larger foundational bud, as intervening cells recede to reveal the digits beneath. This is among many processes captured ...

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 ...