6,871 results
6,871 results for: Bears
- Chemistry
How RNA got started
Scientists identify chemical reactions that could be responsible for the origin of life.
- Humans
Stone Age tools go south
Diamond-mining pits have yielded stone artifacts old enough to suggest that hand axe production started 1.6 million years ago in southern Africa, not just in eastern Africa.
- Chemistry
ENV Tidbits: Corals, nano concerns, and more
News nuggets on climate-imperiled corals, nanotech worries, and soft drinks bearing pesticides.
- Animals
Megafish Sleuth: No Steve Irwin
There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.
- Earth
Monster stingrays: Field notes from a global wrangler
A megafish biologist shares what he's learning about a rare freshwater species.
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Aping the Stone Age
Chimp chasers join artifact extractors to probe the roots of stone tools.
- Ecosystems
Flowering plants welcome other life
When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.
- Health & Medicine
Epilepsy drug might harm fetuses
Young children born to women who took the drug valproate for epilepsy during pregnancy have lower IQ scores, on average, than children whose moms used a different antiepilepsy medication.
- Health & Medicine
Treating viral heart infections
Viral heart infections respond to interferon treatment, easing cardiomyopathy in some patients.
- Astronomy
They’re calling Obama the ‘science guy’
Speakers at a science forum offered support for the thesis that researchers have found a big ally in the new president.
- Space
Planet hidden in Hubble archives
A new way to process images reveals an extrasolar planet that had been hiding in an 11-year-old Hubble picture.
- Archaeology
Shipwrecks harbor evidence of ancient sophistication
Research on shipwrecks from two ancient, submerged harbors shows that frame-based shipbuilding emerged surprisingly early and then became more sophisticated within a few hundred years.
