Reef-building sponges are giving up their long-held secrets.
The flexible neck of the Amazon River dolphin let it hunt masterfully in the muddy shallows of the Amazon Basin.
Forensic anthropologists do facial reconstruction from remains of two crewmen found on the USS Monitor
The evolution of disgust
A dispatch from Brazil’s revolution in child survival
Face to face with slavery in the North
Vulnerable everywhere in the wild, lions already face regional extinction.
There's more to a mountain than the summit.
Evidence that doing good feels good.
Recently identified subspecies ranges farther than first imagined: across Africa.
An archaeologist ponders the fate of Hoover Dam