The link between dinosaurs and birds may be explained by a reduction in the number of wrist bones over millions of years.
Sexual assault victims in Louisiana have come forward with hospital bills for medical services they received while undergoing a forensic medical exam.
Health officials are monitoring everyone who came into close contact with the first person diagnosed with Ebola in the U.S.
There is a stigma against Liberian-Americans in wake of the Ebola epidemic.
Wildlife experts say the walrus gathering -- the largest ever recorded -- is one example of the impact of climate change.
A Canadian utility will formally commission the $1.4 billion CCS facility. The technology is vital if the world is to keep burning fossil fuels.
The unidentified patient is now in critical condition and has been moved to intensive care at Texas Health Presbyterian Hospital in Dallas.
Scientists may have linked California's drought to man-made climate change, according to a new study.
The first Ebola patient in the U.S. has raised fears of a deadly outbreak, but there is another virus that is far more deadly.
Efforts by Nigeria and Senegal apparently have contained the Ebola outbreaks in those countries.
The first case of Ebola was recorded in the U.S. this week, after a man visiting Liberia contracted the deadly virus. Is the U.S. ready?
The dramatic drying up of the Aral Sea has also led to the collapse of fisheries and the communities that depended on the lake.
California is the first state to enact statewide legislation banning plastic bags in retail.
A new print and TV ad campaign for the erectile dysfunction drug Viagra features a woman for the first time -- and no men.
A large and rare canoe discovered in New Zealand sheds light on centuries-old Polynesian sailing technology.
Two portable Ebola testing labs have arrived in Liberia from the U.S., and troops have broken ground on a $22 million field hospital.
According to the World Wildlife Fund, more than 60 percent of the essential services provided by nature are in decline.
More than 500 rescue workers are sifting through the eight-inch thick layer of ash, but poisonous gas halted their efforts Monday.
The frog can be distinguished by its unique call and smooth, orange-colored skin.
A blanket of ash about eight inches deep covered a wide area, forcing as many as 150 people into mountaintop shelters.
Hundreds of people, including children, were stranded on the peak after Mount Ontake erupted without warning just before noon on Saturday.
Doctors are investigating whether enterovirus-68 can cause neurological problems.
While two suitable landing sites have been identified, both landings are scheduled on the same day.
Senegal shares a border with Guinea, which has been hit hard by the Ebola outbreak, but it has managed to keep the virus at bay.
A U.N. $1 billion aid mission hopes to stem the tide at the thousands, but health experts say the toll could reach into the tens of thousands.
The International Monetary Fund has approved $130 million in immediate aid to Guinea, Liberia and Sierra Leone to combat Ebola.
The U.S. is unprepared for a catastrophic viral outbreak on par with the Ebola epidemic currently wreaking havoc in West Africa.
Conditions in the early solar system would have made water formation impossible, according to a new study.
"Everybody in their intentions is moving fast, but in the field we are moving at the speed of a turtle," Doctors Without Borders said.
Despite a technical glitch, the Soyuz managed to dock to the space station in automatic mode and on time.