Updated: 16 min 59 sec ago
More ancient than the dinosaurs, horseshoe crabs show up early every summer to spawn on beaches in the eastern U.S.
Shubhranshu Choudhary created a community news service using cell phones as the media platform in the area where he grew up.
Kiribati announces "very significant" step at U.S. Our Ocean conference.
Social spiders have personalities that determine which jobs they'll do best for their colonies.
The giant-tusked Satao, one of Kenya's most adored elephants, has been killed for his ivory—a "monumental" loss, experts say.
A new report adds more fuel to the debate over whether to lift decades-old U.S. restrictions on the export of oil.
Clipping locks to bridges as love tokens started in Paris and spread. Is it getting out of hand?
The South China Sea was once named for its ruling empire. Now Vietnam and China are sparring over the area.
A novel video game featuring a lifelike virtual dolphin may soon help stroke victims—and, eventually, real dolphins too.
A coast-to-coast ramble puts the lie to the notion that civilization in England began with the Romans.
Photographer Matt Black has spent 20 years photographing his home region—California's Central Valley—as drought ravages the once fertile land of his childhood.
Experts on rare and threatened species issue a warning that lemurs and slipper orchids are at risk of widespread extinction.
Despite recent groundbreaking efforts to curb the illegal ivory trade, the slaughter of elephants in Africa goes on.
In Cambodia and beyond, archaeologists and criminologists are fighting the underground trade in cultural treasures.
Earth braces for a solar storm, the Milky Way cuts across a starry sky, and Cassini greets Phoebe in this week's best space pictures.
Researchers are trying to figure out what ate a nine-foot-long great white shark off the coast of Australia.
A surprising amount of our garbage ends up in the sea. Can it ever be cleaned up?
With worsening shortages, the Golden State turns to water conservation. Will it work?
Why does Friday the 13th cause such anxiety? The answers may surprise you.
New research on the genetic isolation of different groups in Mexico helps explain the settlement patterns of early Mexico.