Babies

Fetuses don't breathe oxygen in utero, so how do newly born babies figure it out?

In a new analysis, researchers compared hundreds of such cases across primate species.

The condition occurs in about 1 in 500,000 births.

Spina bifida is a birth defect that affects the spine and brain.

Temperature-dependent sex is found in certain reptiles and fish. Could it happen in humans?

A new study shows that antibodies can cross the placenta and could be protective to the baby.

The main function of sleep may change as our brains do.

The mothers wore surgical masks and washed their hands before having contact with their babies.

Most of the 16 women in the study showed signs of abnormal blood flow in their placentas, but delivered healthy babies.

The unique animals thrive underground but cannot handle the lack of carbon dioxide above.