6,875 results
6,875 results for: Bears
- Chemistry
Pit vipers’ night vision explained
A new study finds the protein responsible for snakes’ sense of heat.
- Materials Science
Breakup doesn’t keep hydrogel down
Scientists create a new material that is strong, soft and self-healing.
- Anthropology
Inca cemetery holds brutal glimpses of Spanish violence
Bones from a 500-year-old cemetery have yielded the first direct evidence of Inca death at Spaniards’ hands.
- Space
Sun may not be a ‘Goldilocks’ star
The stars that are just right to support life-bearing planets might be dimmer and longer-lived than the sun.
- Health & Medicine
2009 Science News of the Year: Nutrition
Natural vanilla extract comes from pods (shown), but most vanillin is synthesized in the lab. Credit: De-Kay/istockphoto That yeast smells good Yeast has long been pressed into service for making beer and bread. Now the fungus has been tapped for a loftier flavor: vanillin, vanilla’s dominant compound (SN: 5/23/09, p. 9). Natural vanilla comes from […]
- Climate
Obama: Climate’s rock star
A little over a half-hour ago, President Barack Obama wrapped up a stirring pep talk to his fellow world leaders attending the United Nations climate change meeting. He didn’t promise the world. Only that the United States could be depended upon to do its part in helping stem global greenhouse gas emissions and to fund measures that would help fund the world’s poorest and climate-beleaguered nations adapt. But what was especially interesting was to watch how the whole climate conference has waited with baited breath to learn what Obama would say: Could our President make promises that would at last galvanize action in the United States and accord among countries whose views, even yesterday, seemed poles apart?
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A New View of Gravity
Entropy and information may be crucial concepts for explaining roots of familiar force.
- Anthropology
Partial skeletons may represent new hominid
Partial skeletons may represent a new hominid species with implications for Homo origins, one researcher claims. But many of his peers disagree.
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- Earth
Oldest feathered dino shows its colors
Analysis of a fossil suggests plumage first evolved for display, not flight.
- Space
Geophysicists push age of Earth’s magnetic field back 250 million years
South African rocks suggest that the earliest stages of life on Earth were protected from harmful solar radiation.
- Humans
Water, water everywhere
Sid Perkins uncovers the amazing amount of “hidden water” in many consumer products.
