Since the discovery of the bones in Indonesia in 2003, researchers have wrangled over whether the find was an ancient human ancestor or simply a modern human suffering from a genetic disorder.

It used to be called the common cold. Now scientists are starting to put some not-so-common names to the hundreds of viruses that make people cough, sneeze, wheeze and worse.

More than one-third of the people in the United States under the age of 65 had no health insurance for some or all of 2006 and 2007, according to a study released Thursday by Families USA, an advocacy group for the uninsured.

UN talks to hasten a ban on ozone-depleting chemicals were mired in the nitty-gritty on Wednesday, as countries tried to fix the economic costs of meeting a new timetable and funding, a UN Environment Program spokesperson said.

The velociraptor, the fierce scaly-skinned dinosaur made popular by the film "Jurassic Park," actually had feathers, according to a study published on Thursday in the journal Science.

More than a third of 12 to 15-year-olds have faced some kind of cyberbullying, according to a government study.

U.S. researchers found no significant changes in memory or cognitive function among those over age 65 who were overweight or obese.

The world’s largest toy maker, Mattel Inc, apologized on Friday for damaging China’s reputation after recent massive recalls of its Chinese-made toys, admitting it targeted some goods that were actually up to scratch.

Tiny particles of air pollution — less than one tenth the width of a human hair — can trigger clotting in the blood, U.S. researchers said on Thursday in a finding that helps explain how air pollution causes heart attacks and strokes.

Americans are spending roughly $48 a week on … who knows what? They certainly can’t remember, according to a new survey by Visa.