In parts of southern Africa, HIV has picked up mutations that slow down its ability to grow inside a person's blood. That's a good sign. But will it be enough to make a difference in the epidemic?
Carved zigzag marks on a shell found more than a century ago have drawn new interest from archaeologists. The half-million-year-old lines aren't from an animal, and might be art from Homo erectus.
Our primate ancestors were consuming alcohol 10 million years ago in the form of fermented fruit, researchers have discovered. The finding suggests our relationship with alcohol is ancient.
The lifetime ban on blood from any man who has had sex with men dates to the 1980s, before there was a good test to screen for HIV. Critics say the policy is outmoded and needlessly discriminatory.
The new vehicle, named Orion, is designed to carry humans into deep space. But most Americans aren't aware it exists.
An experiment in Chicago randomly assigned train and bus riders to either talk to the stranger next to them or commute quietly. The result? Even for introverts, silence leaves you sadder.
An OPEC meeting last week sent oil prices tumbling when the cartel decided not to restrict production to boost prices. Now some are predicting parts of the U.S. will see gas prices under $2 a gallon.
Turns out, Ebola is transmitted through the air, but it's not very good at spreading through the airborne route. What in the heck does that mean? We dig into the science to clear up the kerfuffle.
A recent National Geographic article looks at toxic waste sites in the U.S. and the more than 49 million Americans who live near them. NPR's Eric Westervelt talks with writer Paul Voosen about his piece.
Between 1981 and 2012, 1 million extra twins were born in the U.S. One economist says all of those twins could be hurting the economy — but another expert points out some perks of twinhood.
For decades, a rare collection of human remains sat in a basement closet at the University of Texas. A new book tells the story of that collection — and the enduring mysteries that surround it.
Dogs pay close attention to the emotion in our voices, but what about the meaning of words? A clever experiment with 250 canines shows that dogs understand more of our speech than previously thought.
The standard commercial American turkey is the product of decades of intense selective breeding. But breeding for efficiency and size has created new health problems scientists must grapple with.
Lab scientists are trying to understand why some corpses buried in northwestern Poland were singled out for special anti-vampire treatments, such as putting a sickle around the neck.
New research into the nature of intractable political conflicts might shed some light on how to address the perennial arguments that break out across Thanksgiving tables.
The number of Americans getting and dying from colorectal cancer has been dropping steadily except for one group — younger adults.
A new study looks at the future of the Canadian Arctic Archipelago and finds that by the end of this century, the region might be ice-free for 2 to 5 months, something that puts bears in grave peril.
Public health groups say lower levels will benefit people who suffer from asthma or other respiratory illnesses. Business groups say it's another expensive hoop to jump through.
The U.S. had planned to build 17 treatment units across Liberia, one in each county's major town. Now that more cases are appearing in remote areas, the Army may need to rethink its strategy.
Vultures consume toxic bacteria that would sicken or kill humans. Stouter immune systems, colonies of helpful microbes and potent stomach acid may help the carrion eaters gorge with abandon.