6,913 results
6,913 results for: Bears
- Animals
Mad Deer Disease?
Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.
- Anthropology
Southern Reindeer Folk
Western scientists make their first expeditions to Mongolia's Tsaatan people, herders who preserve the old ways at the southernmost rim of reindeer territory.
- Earth
Why the Mercury Falls
Certain pollutants can foster the localized fallout of mercury, a toxic heavy metal, from the atmosphere.
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How the Butterfly Gets Its Spots
The spots on a butterfly wing turn out to be unusually good model systems for a range of disciplines from genetics to behavioral ecology, offering biologists a chance to paint the really big picture of how evolution works.
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A Rocky Start
A new origin-of-life theory holds that life began within the confines of iron sulfide rocks surrounding hydrothermal vents at the ocean bottom.
- Earth
On Thinning Ice
Although some of Earth's glaciers seem to be holding their own in the face of global warming, most of them are on the decline, many of them significantly.
- Earth
Attack of the Rock-Eating Microbes!
Geologists who examine mineral transformations increasingly see bacteria at work, leading the scientists to conclude that if microbes aren't driving the underlying chemical reactions, at least they're taking advantage of the energy that's released.
- Astronomy
Shades of Venus
On June 8, for the first time in 122 years, the silhouette of Venus will move across the face of the sun.
- Tech
Reinventing the Yo-Yo
No longer simple toys, today's pricey yo-yos sport high-tech features—such as ball bearing transaxles and precision string-snagging mechanisms—that permit dazzling new styles and complex tricks.
- Astronomy
Dark Doings
A slew of new and proposed experiments, ranging from the cosmic to the subatomic scale, may shed light on why the expansion of the universe is speeding up.
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- Humans
Books for Late Summer
The writers of Science News present wide-ranging recommendations of books for readers to pack for their late-summer vacations.
