6,882 results
6,882 results for: Bears
- Paleontology
Growth Spurt: Teenage tyrannosaurs packed on the pounds
Detailed analyses of tyrannosaur fossils suggest that the creatures experienced an extended growth spurt during adolescence.
-
Psst. This fly’s ears can rival a cat’s
The unusual eardrums of a tiny parasitic fly turn out to rival cats', owls', and people's abilities to pinpoint the origin of a sound.
-
Possible Worlds
A growing number of reports highlight imagination's pervasive influence on thinking, one example of which is the surprisingly large proportion of well-adjusted preschoolers who play with make-believe companions.
- Ecosystems
One-Celled Socialites
A wave of research on the social lives of bacteria offers insights into the evolution of cooperation and may lead to medical breakthroughs that neutralize virulent bacterial strains.
- Health & Medicine
A Carrot Rainbow (with recipe)
There are more than aesthetic benefits from looking beyond orange when it comes to selecting carrots.
- Health & Medicine
A Fishy Therapy
Shark cartilage continues to be sold to fight cancer, even though its efficacy has not been confirmed by any major U.S. trials.
-
Bubble Trouble: Mad cow proteins may hitch a ride between cells
Prions, the proteins behind mad cow disease, may travel between cells in bubbles called exosomes.
- Math
Life on the Scales
A mathematical equation helps explain life processes on all biological scales, from molecules to ecosystems.
- Earth
Harm from Plastic Additive Challenged: Early exposure shows no ill effects
Presumed exposure shortly after birth to a chemical ingredient in plastics shows no evidence of disrupting development in people, according to a small study of teens who, as newborns, received intensive medical care involving plastic hospital equipment.
- Anthropology
Humanity’s Strange Face
New fossil finds in a Romanian cave fuel controversy over whether different, closely related species interbred on the evolutionary path that led to people.
- Chemistry
Nitrogen Unbound: New reaction breaks strong chemical link
Researchers have developed a new way to turn nitrogen into ammonia that could improve upon an energy-intensive, 90-year-old method used to make fertilizers.
- Animals
Carnivores in Captivity: Size of range in wild may predict risk in zoo
A survey of zoo reports of troubled animals suggests that the minimum size of a species' range predicts how well it will adapt to captivity.
