6,913 results
6,913 results for: Bears
- 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.
- Earth
Impurities clock crystal growth rates
A novel method for measuring tiny amounts of hydrogen-containing impurities allows researchers to determine growth rates along different directions in a quartz crystal.
- Astronomy
Balloon Sounds Out the Early Universe
A balloon-borne experiment circling Antarctica has measured the curvature of the universe and revealed that it's perfectly flat.
- Paleontology
Fossils Hint at Who Left Africa First
Fossil skulls found in central Asia date to 1.7 million years ago and may represent the first ancestral human species to have left Africa.
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Bdelloids: No sex for over 40 million years
Researchers find the strongest evidence yet for creatures that have evolved asexually for millions of years.
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Red Snow, Green Snow
It's truly spring when those last white drifts go technicolor as algae bloom in the snow.
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