A Fox code for the face

In the developing face, how do stem cells know whether to become cartilage, bones or teeth? To begin to answer this question, scientists from the USC Stem Cell laboratory of Gage Crump …

Synthetic “tissues” build themselves

How do complex biological structures—an eye, a hand, a brain—emerge from a single fertilized egg? This is the fundamental question of developmental biology, and a mystery still being grappled with by scientists …