During human birth, the fetus typically navigates a tight, convoluted birth canal by flexing and rotating its head at various stages. This complex process comes with a high risk of birth complications ...

Childbirth in humans is much more complex and painful than in great apes. It was long believed that this was a result of humans’ larger brains and the narrow dimensions of the mother’s pelvis.

Childbirth in humans is much more complex and painful than in great apes. It was long believed that this was a result of humans' larger brains and the narrow dimensions of the mother's pelvis.

According to a new study, chimpanzees, like humans, must contend with a confined bony birth canal when giving birth. In humans, the problem was exacerbated by our unique form of upright walking since ...

Scholars often explain that human immaturity and lengthy childhoods came about because of the need for cultural learning—the manners, mores, and conventions of a particular culture. Surely culture is ...

Scholars often explain that human immaturity and lengthy childhoods came about because of the need for cultural learning—the manners, mores, and conventions of a particular culture. Surely culture is ...

The collarbones of a human fetus grow more slowly just before birth, with growth then speeding up again during early childhood – probably an evolutionary compromise that allows humans’ relatively wide ...