A vast region of the Amazon forest in Brazil was home to a complex of ancient towns in which about 50,000 people lived, according to scientists assisted by satellite images of the region.
Discover

The brains of flies are wired to avoid the swatter, U.S. researchers said on Thursday.
Environment

A new species of a parasitic wasp with a grisly life cycle that involves laying its eggs inside flies has been found in Ireland, Galway University said on Thursday.
Environment

A disposable diaper has saved the life of an 18-month-old boy, breaking his fall from a third-floor apartment window, officials said Thursday.
Offbeat

A group devoted to saving rare Chinese tigers is marking a milestone birth in the wild.
Environment

More ominous signs Wednesday have scientists saying that a global warming "tipping point" in the Arctic seems to be happening before their eyes: Sea ice in the Arctic Ocean is at its second lowest level in about 30 years.
Environment

In a bid to break a world record, residents are building hundreds of scarecrows -- traditionally human figures stuffed with straw and dressed in old clothes to keep farm fields clear of crows and other wildlife.
Offbeat

Behavioral scientists and sociologists have quarrelled for decades as to whether generosity and selfishness are inherited or result from social conditioning.
Discover

Astronomers have captured images of a powerful collision of galaxy clusters and say it may shed light on the behavior of dark matter.
Science & Technology

Purdue University on Wednesday reprimanded an Indian-born scientist who has been accused of falsifying claims he produced nuclear fusion in tabletop experiments.
Science & Technology