6,898 results
6,898 results for: Bears
- Agriculture
Farm life turns male toads female
A detailed inventory of toads in Florida finds that, as land becomes more agricultural, more cane toads resemble females both inside and out.
- Humans
Stone Age innovation out of Africa
Researchers have dated two innovative Stone Age tool industries in southern Africa that may have helped spur human migrations out of Africa.
- Health & Medicine
Treating viral heart infections
Viral heart infections respond to interferon treatment, easing cardiomyopathy in some patients.
- Health & Medicine
Telomere enzyme a likely key to longevity
Study with the telomerase enzyme gives mice a longevity boost without high cancer risk.
- Life
Stone Age gal gets hip
Researchers have found an approximately 1-million-year-old fossil pelvis that, in their view, indicates that Homo erectus females gave birth to surprisingly big-brained babies.
- Life
Extreme preservation gives fly’s eye view
The cell-by-cell detail of a 45 million-year–old retina is preserved in amber
- Humans
Taking trophy heads close to home
Members of the prehistoric Nasca culture in southern Peru took trophy heads from their own people rather than from foreigners captured in wars or raids, a new biochemical analysis suggests.
- Agriculture
Candy cane strategy sweetens life for goldenrods
Goldenrods temporarily duck their heads during pest season
- 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.
- 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.
- Ecosystems
Flowering plants welcome other life
When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.
- Agriculture
Predators zoom in on lice-infested salmon
New research reveals another impact of fish farming on wild stocks.
