New research suggests that curiosity triggers chemical changes in the brain that help us better understand and retain information.
Juan Enriquez argues that human evolution is far from over — homo sapiens are becoming a new species right before our eyes.
Geneticist Spencer Wells tells the story of early humans, and our eventual migration from Africa.
Geneticist Spencer Wells describes how he uses DNA samples to trace our individual origins going back 2,000 generations.
Louise Leakey describes her family's long search for early human remains in Africa, and how unlocking that mystery is the key to understanding our past and our future.
Paleontologist Jack Horner explains what dinosaurs tell us about our own origins and what we can learn by attempting to revive a piece of the past.
David Christian explains the history of the universe from the big bang, and how humans occupy little more than a millisecond on that cosmic timeline.
For starters: Your voice is too squeaky, too loud; it lacks authority, is grating or obnoxious or unprofessional. Why is talking while female such an offense?
Shirley Corriher, author of Cookwise: The Hows and Whys of Successful Cooking, has tips on taking the bitter bite out of coffee, and holding onto cabbage's red hue while it's in the pan.
A European spacecraft has picked up a foul odor emanating from comet called 67P/C-G. Imagine sharing a stable with a drunk person and a dozen rotten eggs.
A viral video shows people lauding fare billed as an "organic" fast-food option that was actually McDonald's. It wasn't just pranksters playing tricks on these poor folks, but maybe their brains, too.
The Food and Drug Administration has issued warning letters to companies marketing products claimed to be cures for Ebola. One firm says it will drop such claims — but it's still selling the product.
Is California's severe drought hurting the nutrient content of fruit? No, preliminary data on pomegranates suggest. The fruit may be smaller, but packed with more antioxidants, tests show.
Frustrated scientists argued Wednesday that making nasty viruses even worse in the lab provides crucial insight into preventing pandemics. Others say it just ups the risk a lab germ will start one.
The idea of a "trophy wife" is common in popular culture: Attractive young women trade beauty for status by "marrying up" and finding wealthy husbands. NPR's Shankar Vedantam questions whether the belief is a real phenomenon.
Scientists first figured the claw-tipped, giant arm bones found in 1965 belonged to an ostrich-like dinosaur. But its recently recovered skull looks more like a dino designed by a committee — of kids.
The North Carolina coast may be the last place you'd think to find a sunken German submarine from World War II. But that's what Joe Hoyt — a nautical archeologist — found on a recent expedition to the ocean floor. Robert Siegel talks to him about the underwater battle site there.
The DNA in this ancient Siberian leg bone shows that the man had Neanderthal ancestors — yet more proof that humans and Neanderthals interbred. And he lived much farther north than expected.
Just because the Food and Drug Administration recalls a supplement because it contains dangerous substances, doesn't mean the product disappears from the market.
The World Health Organization says two vaccine candidates now undergoing small-scale tests of dosage and safety in people might be ready for broader deployment in Africa by early 2015.