In zebrafish, some amount of reactive oxygen species is required for normal development.

A study of Shuar children in Ecuador provides a window into how the human body responds to infection in the sorts of conditions that shaped our species’ evolution.

Species with larger pancreatic cells tend to have shorter lives, according to a study.  

A small study based on circulating RNA in the blood of moms-to-be describes a technique that could be used to help predict who’s most at risk of preterm labor.

The finding confirms that a cluster of cells that directs the fate of other cells in the developing embryo is evolutionarily conserved across the animal kingdom.

The extracellular matrix appears to inhibit regeneration; but scientists debate whether heart muscle really comes back.  

The tools researchers used to study how this amphipod’s limbs develop could help inform our understanding of cell lineages and fates.

The devices, which could one day treat children with esophageal atresia and short bowel, were recently tested in pigs.

Researchers stumbled across the connection while searching for ways to reduce vision problems in people with achromatopsia.