embryology

Embryonic cells can self-assemble into new living forms that don’t resemble the bodies they usually generate, challenging old ideas of what defines an organism.

Catherine Dulac is overturning preconceptions about “male” and “female” instincts and opening new avenues to treating postpartum depression.

A lizard that both lays eggs and gives birth to live young is helping scientists understand how and why these forms of reproduction evolved.