For women past childbearing age, a new study finds that a modest amount of exercise -- four hours a week of walking or more intensive physical activity such as
A detailed analysis of the Great Barrier Reef over the past two decades shows that extreme heat is the key driver of mass bleaching. Rising temperatures may push the reef beyond recovery.
Nature draws a pretty clear distinction between predators and the things they eat: Predators are bigger than their prey. Except no one told the kingsnake.
The dinosaur family tree may need to be radically rewritten — and even uprooted and replanted elsewhere, a new analysis shows.
These parasitic beetles infiltrate colonies of army ants. They look, act and smell like their hosts, but it's all a ruse to eat the ants' young.
Scientists have discovered the fossil remains of a 430-million-year-old crustacean previously unknown to science – a proto-shrimp that they’re naming in honor of naturalist David Attenborough.
Sometimes, life kicks you when you’re down. According to new research, that crummy, achy, sneezy feeling you get when you have a cold is worse if you are also feeling lonely.
Why do some humans engage in expensive ventures to hunt lions, elephants and other big-game species that often are endangered or otherwise threatened? The cost is exactly the point.
Caught between the power of an authority figure and our own qualms, we are more often creatures of expectation than we are creatures of personal conviction.
Natural Brexit: Nearly 450,000 years ago, Britain was separated from Europe thanks to a series of catastrophic waterfalls
NASA's MAVEN spacecraft has found that Mars likely lost much of its atmosphere to space, thanks to a young, rambunctious sun.
When Americans buy science books, their political leanings tend to show, study finds
NASA missions to the surface of Europa, a nearby asteroid and the atmosphere above our own planet would be cut from JPL’s portfolio under the White House budget proposal released Thursday.
For all its populist appeal, the push for "Right to Try" laws has raised the ire of ethicists, drug-safety experts and a former FDA commissioner.
Researchers have found a genetic mutation that turns people into Martians — at least when it comes to sleep patterns. NBC News reports.
EPA chief Scott Pruitt suggests regulations are behind coal's falling share of U.S. electricity generation, but most analysis points to a natural gas boom.
President Donald Trump vowed to end the war on coal on Tuesday, and that's good news for coal stocks in the near term, energy expert Carl Larry told CNBC.
The Environmental Protection Agency will take a less aggressive approach to carbon dioxide emissions than in the past, Scott Pruitt said on Tuesday.