The discovery, in a bizarre animal not closely related to birds, could change how scientists think about the origin of ...

No one had spotted the world’s smallest known snake for nearly two decades. Some scientists worried that maybe the Barbados ...

This is a well-written study that presents a solid genetic screen to identify regulators of adipose morphology and remodeling in zebrafish. The authors generated a rigorous screening platform based on ...

A fossilized brain from a 500-million-year-old sea creature shows unexpected spider-like features, hinting that spiders and their kin may have evolved in the ocean—not on land.