Exclusive: Last month's gorilla "executions" are the result of a burgeoning illicit charcoal trade that includes government officials, wildlife rangers allege.

HRP-2 can lie down, serve tea, and help lift loads. Now researchers are hoping the graceful automaton can help preserve traditional dances as human performers fade away. With video

Groundbreaking new images have revealed the surprising sprawl of Cambodia's iconic imperial city.

The kingdom of Angkor was the world's largest preindustrial settlement, but sprawl and environmental degradation hastened its downfall, a new study hints.

Photos: Angkor's Ancient Sprawl

A possible chamber under a stone carving of a fearsome goddess could be the first Aztec tomb ever to be discovered, archaeologists announced.

Three Mexican students beat teams from Canada and the United States to take the gold at the eighth National Geographic World Championship.

Estimated at 16 feet (5 meters) tall, the giant marble likeness of Hadrian is among the most exquisite ever found, archaeologists say.

England's gene pool has shrunk considerably since the days of the Vikings, possibly due to two deadly, centuries-old plagues that wiped out large parts of its population.

Plants thought to treat impotence and cancer are disappearing from Uganda's rain forest before scientists can study whether they actually work, experts say.

Take a virtual tour of Rome circa A.D. 320, and compare the city's digital re-creations with modern photos of the real-life monuments.

See a roundup of the week's news and events: Bridge over Mississippi River collapses, new Veil Nebula images released, and more.

In a legally symbolic gesture, Russian mini-subs dove under the Arctic ice to try and secure rights to the region's potential natural resources.

Some areas of Zimbabwe have nearly been wiped clean of wildlife—a disastrous effect of a highly controversial land-seizure program—a new study finds.

It took 1,200 Iranian weavers 18 months to make the soccer-field-size carpet, which will cover the main prayer hall of a mammoth new mosque.

The long-rumored town of Rhakotis, Egypt, did exist centuries before Alexander the Great arrived in Alexandria, according to the first evidence taken from underwater samples.