Scientists injected unfertilized anole lizard eggs with CRISPR-Cas9 to produce albino offspring.

After growing in culture for a few months, the mini-brains produced rhythmic neural activity that strengthened over time.

In a species of freshwater turtle, embryos can move toward warmer or cooler environments within the egg and thus help choose their sexual destiny, but not all experts are convinced.

To see if the spiky fish shares signaling pathways found in other organisms, scientists scooped up specimens during a mating frenzy on the shores of Japan.

Researchers track which genes are active in the polyp during successive cell states.

Maternal care for the fish alters the structure of their developing heads.

See a developing Drosophila eye.

Eaton studied morphology and growth during development at the Max Planck Institute of Molecular Cell Biology and Genetics.

The connectomes trace 385 neurons in the male worm and 302 neurons in the hermaphrodite worm.