Maybe it was messier than we thought, some scientists now say. Big brains, long legs, and long childhoods may have evolved piecemeal in different spots, in response to frequent swings in climate.
StateImpact Oklahoma's Joe Wertz reports on a new study that links a "swarm" of earthquakes to four specific, high-volume oil and gas industry disposal wells. It's one of several reports that show oil and gas activity could be causing a rise in earthquake activity.
A study on the wandering mind had a simple request: Just think. But many participants couldn't sit still for very long, and they even were willing to shock themselves to avoid doing nothing.
A scientific study that manipulated the news feeds of Facebook users has sparked a lot of negative feelings toward the company. A top executive apologized. Now, NPR's Shankar Vedantam weighs in.
We know some people are more at risk for abusing alcohol than others. Now scientists say they're getting closer to predicting which teenagers are most at risk.
Digital mammograms are sharper and aid diagnosis, radiologists say. But these scans aren't significantly better than film scans in finding tumors in older women, a study finds. And they cost more.
When it comes to living at extreme altitudes, Tibetans may have gotten a leg up from Denisovans, a species of archaic humans that lived about 50,000 years ago.
Scientific papers that claimed stem cells could be made in the laboratory simply by dipping regular cells in acid didn't hold up under scrutiny. Now the work is being retracted because of errors.
A plastic jar of animal crackers was too enticing for a young bear in New Jersey, which got its head irretrievably wedged
It's got big iron teeth and a powerful jaw. When it finds a 30-foot tree it goes to the top, opens its mouth and — watch this.
Fabien Cousteau and a crew of scientists and explorers have spent the past 31 days underwater in the Aquarius Reef Base off the coast of Florida. David Greene talks to Cousteau about the experience.
Companies say it pays to invest in employee health — productivity climbs and many costs of health care drop. But preserving worker privacy while encouraging fitness can be tricky.
The University of California, Davis is the source of most commercial strawberries. Now, the university's strawberry breeders are going into business for themselves, and farmers are worried.
You don't necessarily have to waste your days regretting the mistakes of your youth. People who drop bad habits by their 40s can slow or even reverse damage done to their arteries, a study finds.
The supercomputer first showed off its intellectual prowess on Jeopardy. Now after analyzing a massive number of recipes, Watson has come up with its own sauce.
Scientists have announced they discovered 3 supermassive black holes orbiting close together in a single galaxy. That indicates that black holes are more common than astronomers previously thought.
New analysis finds that the countdown clocks telling pedestrians how much time they have to cross the intersection actually increases traffic crashes.
On Tuesday, NASA is to launch a new satellite to observe carbon dioxide from space. The satellite could revolutionize our understanding of where this greenhouse gas comes from and where it goes.
Lead exposure lowers children's IQ and causes aggression. But children exposed to low levels of lead show different symptoms, including more depression and anxiety, a study of preschoolers finds.
An earlier version of the satellite crashed into the ocean near Antarctica shortly after launch. Scientists are keeping their fingers crossed for the second attempt.