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
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
Algae, plants and humans: three groups of organisms that used chemistry to change the planet.
Peaks protected fifty years ago by the Wilderness Act no longer keep mountain goats safe from human impact.
By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.
Preconceptions skew our view of the biggest killer in the developed world, atherosclerosis.