Researchers in Australia have provided the final piece of a puzzle to develop a new anti-malarial drug, which targets the parasite that causes the disease and kills it with a salt overdose.

Ruby-throated hummingbirds are migrating to North America weeks earlier than in decades past, and research indicates that higher temperatures in their winter habitat may be the reason.

A 150-foot (45-meter)-wide asteroid will come remarkably close to Earth next week, even closer than high-flying communication and weather satellites. It will be the nearest known flyby for an object of this size.

New research pinpoints how the torch passed from one dominant creature on Earth to another, from the brutish dinosaur to the crafty mammal.

He wore the English crown, but he ended up defeated, humiliated and reviled. Now things are looking up for King Richard III. Scientists announced Monday that they had found the monarch's 500-year-old remains under a parking lot in the city of Leicester — a discovery Richard's fans say will rewrite the history books.

U.S. medical specialists from Johns Hopkins University in Baltimore have figured out how owls can almost fully rotate their heads — by as much as 270 degrees in either direction.

Archaeologists say they have turned up about 150 skulls of human sacrifice victims in a field in central Mexico, one of the first times that such a large accumulation of severed heads has been found outside of a major pyramid or temple complex in Mexico.

A humble U.S. coin with a storied past is headed to auction, and bidding is expected to top US$2 million.

Ancient corn farmers living in pit houses among arid canyons of what is now Utah may have sweetened their lives with a chocolate derivative imported from the tropics of Central America, recent archeological findings suggest.

Present-day Asians and Native Americans are descended from a group of people who were already in China 40,000 years ago, according to an analysis of fossil DNA published this week.