6,909 results
6,909 results for: Bears
- Earth
Climate’s Long-Lost Twin
New geological evidence suggests that humans have started exploiting fossil fuels and altering Earth's atmosphere at precisely the moment when greenhouse gases could do the most damage to climate.
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Genes to Grow On
Researchers studying children with Williams syndrome say that the unusual condition emerges through a developmental process that's influenced but not predetermined by a genetic defect.
- Health & Medicine
Fused cells hold promise of cancer vaccines
A vaccine composed of tumor cells fused to immune cells has helped several people survive advanced kidney cancer.
- Astronomy
Getting a Clear View
Outfitted with a mirror that flexes several hundred times a second to compensate for the blurring induced by Earth’s atmosphere, one of the world’s sharpest telescopes just got a whole lot sharper.
- Animals
Pregnant—and Still Macho
Some of the basic theories of sexual behavior and sexual selection are getting attention thanks to a burst of new studies in the topsy-turvy social world of the seahorse, where the males get pregnant.
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Lady-killing genes offer pest control
Two new fruit fly lines—with females that die on cue—could lead to changes in pest control.
- Math
Random packing of spheres
A new definition of random packing allows a more consistent and mathematically precise approach to characterizing disordered arrangements of identical spheres.
- Materials Science
The Buck Starts Here
The U.S. Mint performed some neat tricks to make a golden dollar.
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How whales, dolphins, seals dive so deep
The blue whale, bottlenose dolphin, Weddell seal, and elephant seal cut diving energy costs 10 to 50 percent by simply gliding downward.
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Cooperative strangers turn a mutual profit
In social exchanges, monkeys and people often appear to act according to the principle that "one good turn deserves another."
- Archaeology
Early New World Settlers Rise in East
New evidence supports the view that people occupied a site in coastal Virginia at least 15,000 years ago.
- Earth
It’s high tide for ice age climate change
Tides may sometimes be strong enough to tug Earth into an ice age.
