6,791 results
6,791 results for: Bears
- Health & Medicine
The Power of D
Sunshine vitamin’s potential health benefits stir up, split scientists.
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- Life
How salmonella helps kill cancer cells
A bacterial foe gives the immune system a boost to seek and destroy melanoma. The findings may point to a vaccine for melanoma and other malignancies.
- Space
Between the sheets
The detection of layered minerals in a young star’s planet-forming region suggests an origin for Earth’s oceans.
- Life
Doing their part by not doing their part
Freeloaders can be good for a community, yeast experiments suggest.
- Life
A giant penguin plumed in earth tones
The first well-preserved feathers of 36-million-year-old diving bird give clues to color and evolution.
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Evidence of ancient roots
Though early hominids may have made sweet sounds by banging sticks and stones together, the oldest distinguishable instrument dates to 40,000 years ago. A flute made from vulture bone (shown) and others made from mammoth ivory have been found in Hohle Fels cave near Ulm, Germany, and date from 35,000 to 40,000 years ago. Holes […]
- Health & Medicine
Everyone poops his or her own viruses
The viral denizens of a person’s intestines are unique and don’t change much over time, a study suggests.
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Young’uns adrift on the sea
Scientists try to identify and track elusive larvae in a boundless ocean.
- Humans
BPA induces sterility in roundworms
Bisphenol A does a real number on the genes responsible for successful reproduction in a 1-millimeter-long soil-dwelling roundworm. And that suggests BPA might pose similar risks to people because geneticists are finding that this tiny critter can be a remarkably useful “lab rat” — predicting impacts in mammals, including us.
- Space
All flash, no crash
New Hubble Space Telescope images confirm that Jupiter emerged unscathed from an impactor that created a fireball above the planet’s cloud tops on June 3. The new images indicate that the object exploded as a meteor in the planet’s upper atmosphere rather than plunging into the atmosphere
- Tech
Heavier crudes, heavier footprints
BLOG: Refining heavy oils and tar sands could greatly exaggerate the greenhouse gases associated with fossil-fuel use, a new study finds.
