A number of epidemiological studies support a link between air quality and poor health outcomes, and researchers are searching for explanations in the lab.

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

A case study of a family demonstrates that different genetic mutations from the two parents cause severe heart disease symptoms in the children.

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.