Radiocarbon dating of human remains indicates that the mysterious stone monument was used as a cemetery longer than previously thought.

Glaciers that wrapped around the globe millions of years ago melted rapidly when a huge release of methane gas caused Earth to warm, a new study suggests.

Egyptian archaeologists found the portico, or covered entryway, to the temple of a ram-headed fertility god while conducting the first-ever underwater surveys of the Nile.

The 54-million-year-old "Danish blue"—nicknamed in honor of a Monty Python sketch—skimmed the skies when Europe was tropical, a new study says.

Host Alex Trebek asks the last three questions of the final round in the 2008 National Geographic Bee held in Washington, D.C.

A 290-million-year-old fossil may be an evolutionary missing link in the family tree of amphibians, scientists say.

The tiny grooming tool discovered on the seafloor off Key West, Florida, is just the latest treasure revealed during the hunt for the shipwrecked Spanish galleon Santa Margarita.

The marble bust of the Roman emperor—possibly the oldest ever found—was discovered by divers in a French river.

A small, fragile piece of a 2,000-year-old Dead Sea scroll was shown briefly to visitors at a Jerusalem conference.

One of the most important Dead Sea scrolls is going on display in Jerusalem this week—more than four decades after it was last seen by the public.

Dangerous skull surgery was commonly and successfully performed among the Inca, likely as a treatment for head injuries suffered during combat, a new study finds.

Spain says it has proof that the treasure—retrieved by a Florida salvage company from a secret location last year—is from a warship that sank in 1804.

The massive burial site contains a treasure trove of artifacts and information about two little-known South American civilizations, experts said.

Among the unusual finds are a possible victim of human sacrifice and a skeleton with curiously curved bones, anthropologists report.

People living in the earliest known settlement in the Americas relied partly on seaweed, bolstering the theory that the New World was settled via a coastal route, a new study says.