Prehistoric Birds May Have Used Four Wings to Fly
A study of fossils of prehistoric birds suggests two sets of wings—one set on the creature’s hind legs—helped avians stay aloft
That Time Indiana Almost Made Pi Equal to 3.2 And Other True Stories About Pi
As you celebrate today’s holiday, here’s a history of notable moments in the irrational number’s past
Stressed Corals Dim Then Glow Brightly Before They Die
Measuring how coral fluorescence changes may serve as an early indicator of the declining health of a reef
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
New Study Examines San Joaquin Valley, Home to America’s Dirtiest Air
The smog-filled valley recently hosted NASA planes that tested air quality to help calibrate future satellite efforts to measure air pollution
Scientists Map Buried Flood Channels on Mars in 3D
Deep channels, buried under lava but now mapped with satellite data, give hints to the planet’s violent, wet and recent past
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
Which Major Cities Are Leaders in Reducing Greenhouse Gas Emissions?
Research shows that cities can cut emissions by 70 percent; check out the ones striving their hardest to curb their carbon appetites
A Plague of Locusts Descends Upon the Holy Land, Just in Time for Passover
Israel battles a swarm of millions of locusts that flew from Egypt that is giving rise to a host of ecological, political and agricultural issues
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
When, Where and How to Watch the Comet PanSTARRS This Month
Look for the comet just after twilight in the Northern Hemisphere’s western sky, with the best viewing chances to come early next week
Miniature African Forest Elephants Could Be Extinct in 10 Years
Ivory poachers slashed the population of the small elephants by 62 percent in the past decade—future losses at those rates will doom the species
Climate Change Could Allow Ships to Cross the North Pole by 2040
Melting sea ice will open up shipping lanes across the Arctic, potentially making the Northwest Passage and North Pole navigable during summer
Trapped as Climate Changes, Giant Gusts of Hot Air Trigger Weather Extremes
Thanks to global warming, hot air piles up at mid-latitudes and causes storms and heat waves to linger for long stretches of time, new research shows.
What Does the Unbelievably Bad Air Quality in Beijing Do to the Human Body?
The level of soot in Beijing’s air is off the charts, leading to higher risks of lung cancer, heart attacks and other health problems
Dust from the Sahara Can Seed Rain and Snow Clouds Over the Western U.S.
Clouds above California contain dust and bacteria from China, the Middle East and even Africa, new research shows
Could Disappearing Wild Insects Trigger a Global Crop Crisis?
Three-quarters of the world’s crops—including fruits, grains and nuts—depend on pollination, and the insects responsible are disappearing
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