The uterus has been a site of medical, and moral, scrutiny for centuries. In her new book, “Womb,” the midwife Leah Hazard explains what we know about the uterus — and how much we’ve yet ...

These cannibal baby sharks eat their siblings in the womb 01:27. As adults, sand tiger sharks are known for being relatively non-aggressive. But as babies, these animals engage in a cannibalistic ...

New research from the University of Waikato nails down how much light travels from the outside world to babies in the womb, with far-reaching implications for understanding human development.