19th Century Shark Tooth Weapons Reveal A Reef’s Missing Shark Species
Lashed to swords and spears from the Pacific's Gilbert Islands are teeth from two shark species that were never known to have swam in the area
What Makes Rain Smell So Good?
A mixture of plant oils, bacterial spores and ozone is responsible for the powerful scent of fresh rain
What Can Bees Teach Us About Gang Warfare?
In Los Angeles, an anthropologist is using equations to teach police about how street gangs operate
The Greening of the Arctic is Underway
As the climate changes, trees and shrubs are poised to take over tundra and alter the Arctic's ecosystems
Research Shows That True Fame Lasts Longer Than 15 Minutes
Contrary to the cliché, an analysis of news articles over the years shows that celebrity has lasting power
A Survey of the 161 Bacterial Families That Live on Your Fruits and Veggies
The first-ever sequencing of the "produce microbiome" reveals that grapes, peaches and sprouts host the largest diversity of harmless bacteria
Warning: Living Alone May Be Hazardous to Your Health
Being socially isolated increases your chance of death—but not because you're feeling depressed over being lonely
Video: This Lizard-Inspired Robot Can Scamper Across Sand
It's a product of the emerging field of terradynamics, which studies the movement of vehicles across shifting surfaces
Video: This Mini 3D Display Could Show up on Next Generation Smartphones
The new technology can be packed into a tiny space, requires no glasses and can project images and video in full color
UPDATED: Has the Voyager 1 Probe Finally Left the Solar System?
New data indicate the spacecraft, launched in 1977, has neared interstellar space, more than 11 billion miles away from the Sun
Prehistoric Human Skull Shows Signs of Inbreeding
A 100,000-year-old skull has a hole that reflects genetic mutations from inbreeding—likely a common behavior for our ancestors
How Do Roosters Know When to Crow?
Their internal circadian rhythms keep them crowing on schedule, even when the lights are turned off
Nearly 8 Miles Down, Bacteria Thrive in the Oceans’ Deepest Trench
The Mariana Trench may serve as a seafloor nutrient trap, supporting remarkable numbers of microorganisms
Are Babies Bigoted?
An intriguing study involving puppet shows suggests that infants dislike those who are different from themselves
Science Shows Why You’re Smarter Than a Neanderthal
Neanderthal brains had more capacity devoted to vision and body control, with less left over for social interactions and complex cognition
How a Computer Program Can Learn All About You From Just Your Facebook Likes
Your publicly available "likes" can tell others a lot you wouldn't expect—including your political views, sexual orientation and religion
What Happened the Last Time the Climate Changed
Smithsonian scientists investigate a sudden warming of the Earth 55 million years ago to understand how climate change will affect future ecosystems
Even Bees Get a Buzz When They Drink Caffeine
The drug, naturally present in coffee and citrus plant nectars, is shown to improve honeybees' long-term memory
This 33,000-Year-Old Skull Belonged to One of the World’s First Dogs
A new DNA analysis confirms that an ancient skull found in a Siberian cave was an early ancestor of man's best friend
How Emperor Penguins Survive Antarctica’s Subzero Cold
The birds' plumage is even colder than the surrounding air, paradoxically insulating them from heat loss
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