Scared of something and don’t know why? Maybe your parents or grandparents passed along their fear to you, a new mouse study suggests.
The body’s internal clock can be thrown off when people alter their day and night routines. That mix-up may lead to a buildup of immune cells that can cause inflammation, according to a new study on mice.
Serenading males can sing some surprisingly low notes, and scientists have just uncovered how they do it.
A new mouse study suggests the effects of steroids can last at least months. That’s long after most sporting authorities would be able to identify signs of doping in athletes.
Teen use of cigarettes has dropped a bit in recent years. But many kids have been turning to other tobacco and tobacco-like products. And which they choose can differ sharply by gender and ethnic group.
Australian researchers found leafy nano-evidence pointing to rich deposits of the precious metal deep below ground.
Get that mouse a sweater! A chilly environment suppresses the immune system in mice. This can foster cancer growth, a new study finds.
Injecting carbon dioxide underground seems like a good way to slow down global warming. A new study shows, however, that the process could trigger earthquakes.
Many people report seeing their own hands moving in the dark, a new study finds. In these people, brain areas responsible for motion appear to fool vision centers into seeing what they would have — if there had been enough light to do so.
A new study finds that teens may act impulsively in the face of fear. This might help explain high rates of violence among such adolescents, the authors say.
Contests where teens compete to keep computers safe from hackers are helping to train and grow the next generation of cyber defenders.
Everything above absolute zero gives off some heat. Usually objects radiate more heat — or energy — as their temperature climbs. But engineers now have created a material that sometimes appears to cool even as it is warming.
Comet ISON is hurtling toward the sun at breakneck speed. During this first (and possibly last) trip around the sun, it will either shoot back into space or be torn apart.
During waking hours, litter builds up in the spaces between brain cells. A new study shows that during sleep, fluid from the brain and spinal cord takes out this trash.
Paleontologists debut the oldest T. rex ancestor. Weighing as much as a car and longer than a two-story building is tall, this meat eater would have been one fierce predator.
A new analysis suggests humans are not alone in the universe. Our galaxy alone may host billions of Earth-like planets, ones able to support life as we know it.
Why is granny so forgetful? Scientists must learn how the brain builds memories if they hope to figure out why recall fails in old age.
Most scientists think people need two eyes to see a flat image or movie in three dimensions. However, a new study suggests seeing in 3-D with one-eye is possible.
Some scientists propose a newfound South African species as the most likely ancestor of the line that led to humans. But not everyone accepts that this is where it all began.
By abandoning their coastal homes, some sharks survived an event that caused mass extinctions of other species.
A zap to a monkey’s brain fools the animal into thinking its finger has been touched. The findings point to a way for artificial fingers to communicate with the brain so that touch “feels” more real.
These plastic-laced water molecules can create their own protective shell. That can make capsules for holding drugs or for hosting chemical reactions.
Forget Count Dracula or Twilight’s Edward and Bella. Many creatures have a true thirst for blood, and here’s why.
The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.
The big backup plan: Scientists reluctantly consider altering Earth’s climate to head off the catastrophic effects of global warming.
How sure are scientists that people are to blame for global warming? “Extremely likely,” says an international panel of climate change researchers in a new report.
The achievements behind the 2013 Nobel Prize in chemistry relied on a lot of complex physics. But the computer techniques pioneered by these three men are now saving chemists a lot of work.
Chemistry is just one way to repel water in nature. Structure, or the shape of things, is another. To excel at water repellency, the lotus leaf relies on both.
Here’s another reason to eat broccoli and related veggies: They protect the body’s cells from killer radiation — at least in rats.
Studies of humans’ nearest living relatives — chimps and bonobos — reveal similarities and differences among them and us.
What’s Mars made of? Volcanic rock, glassy particles and a poisonous rocket-fuel chemical, among other things. That’s the latest from tests by NASA’s Curiosity rover.
Biologists find archaea a true curiosity. They make up one of life’s three main branches. The two better known branches are bacteria and eukaryotes (u KARE ee oatz). That last branch includes animals, plants and fungi. But archaea have remained mysterious. Very little is known about them. In fact, their unique status wasn’t even recognized until relatively recently, in 1977.