It's all in the wrist, according to a new study suggesting that the "hobbit" human found in Indonesia is a discrete species and not a diseased modern human.

Bogs that "burped" methane contributed to climate 55 million years ago, a new study says. Will wetlands play a similar role today?

Natural formations or 5,000-year-old city ruins? Scientists are still divided over the origin of mysterious stone structures off the coast of Japan's Yonaguni Jima.

Stone structures lying off a tiny Pacific island continue to draw controversy over whether they are natural formations or the ruins of a 5,000-year-old city.

Photos: See the Mysterious Formations

Fossils of human ancestors found in the republic of Georgia suggest we evolved from a patchwork species that had both apelike and more advanced features, scientists report.

Sudden catastrophic climate change didn't doom our human cousins 30,000 years ago, according to the latest research on the controversial topic.

The mummified remains of teenage girl who died more than 500 years ago went on public display for the first time last week in Argentina.

Pits crammed with Stone Age skeletons suggest a bloody era of fighting nearly 6,000 years ago over the rapidly growing city of Tell Brak, according to archaeologists.

Fossils of a tiny 80-million-year-old feathered dino add to the theory that massive meat-eaters gave rise to today's birds, a new study says.

A 2,200-year-old tomb has been discovered completely intact in Tuscany, revealing a mass burial dating back to the Etruscans, who ruled Italy long before the Romans.

Cracks in his skull and injuries to his brain suggest that a blow to the head added to the lethal arrowhead wound that killed the prehistoric man, researchers announced.

More than 1,500 victims of 15th- and 16th-century bubonic plague have been found in mass graves on an island near Venice.

More than 1,500 victims of the bubonic plague have been found on what may have been the world's first disease-quarantine colony.

Pictures: Mass Graves off Venice

Pollen-bearing parts attached to the back of a bee from 10 million to 15 million years ago offer new insight into the flowers' evolution, researchers say.

Today's top athletes would be no contest for meat-eating dinosaurs that ran on two feet, according to new computer simulations of how the extinct predators moved.