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embryology

developmental biology

Cells Form Into ‘Xenobots’ on Their Own

March 31, 2021

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.

Portrait photo of Catherine Dulac of Harvard University and the Howard Hughes Medical Institute.
Q&A

Catherine Dulac Finds Brain Circuitry Behind Sex-Specific Behaviors

December 14, 2020

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

A baby lizard emerging from a transparent egg membrane.
Abstractions blog

Egg Laying or Live Birth: How Evolution Chooses

May 18, 2020

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