6,867 results
6,867 results for: Bears
- Tech
Reinventing the Yo-Yo
No longer simple toys, today's pricey yo-yos sport high-tech features—such as ball bearing transaxles and precision string-snagging mechanisms—that permit dazzling new styles and complex tricks.
- Math
Squaring Circles
Cutting a circle into pieces and reassembling the fragments to form a square is a tricky proposition.
- Earth
Dangerous Dust? Chemicals in plastics are tied to allergies
Elevated risks for developing multiple allergies, including asthma, eczema, and rhinitis, appear to be associated with household exposure to synthetic chemicals called phthalates.
- Health & Medicine
Joint Effort: Bacteria in yogurt combat arthritis in rats
Yogurt containing certain types of live bacteria may help prevent or treat arthritis.
- Earth
Quick Bite: Some gorges carved surprisingly fast
Analyses of rock samples from two river gorges along the Atlantic seaboard suggest that the largest parts of those chasms were carved during a geologically short period at the height of the last ice age.
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Gutless Wonder: New symbiosis lets worm feed on whale bones
A newly discovered genus of marine worm can take nourishment from sunken whale skeletons, thanks to a previously unknown form of symbiosis.
- Health & Medicine
Against the Migraine
Migraines may be among the problems that stem from a common but rarely diagnosed heart defect, and researchers have discovered that repairing the defect cures some of the headaches.
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- Humans
From the August 11, 1934, issue
Ruins of magnificent Assyrian palace uncovered, termites need fungus to thrive, and Homo sapiens thought to be 10 million years old.
- 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.
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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.
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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.
