Search Results for: Bears
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6,867 results for: Bears
- Paleontology
The last ice age wasn’t totally icy
Radiocarbon dating of fossils taken from caves on islands along Alaska's southeastern coast suggest that at least a portion of the area remained ice-free during the last ice age.
By Sid Perkins - Plants
Save the Flowers
Now that breeders have created thousands of new ornamental-flower varieties, scientists are turning their attention to restoring the fragrances that fell victim to the process.
By Ivan Amato - Earth
Nonstick Pollution Sticks in People
A new study reveals high blood concentrations of a potentially toxic component of nonstick products in people near a plant making Teflon.
By Janet Raloff - Materials Science
A hard new material with a soft touch
Adding exotic substances called quasicrystals to polymers creates nonabrasive hard materials, which could soon serve as coatings in machine parts.
- Humans
From the February 9, 1935, issue
A new type of sailboat, the most distant nebula, and germs on drinking glasses.
By Science News - Physics
Marrying matter and light
Physicists have created circuit components that, in a manner analogous to atoms, meld with light, opening new ways to study fundamental light-matter interactions.
By Peter Weiss - Health & Medicine
Potent Medicine
Drugs now used to treat erectile dysfunction might soon assume multiple roles in managing heart disease and other conditions, including some that affect women and infants.
By Ben Harder - Materials Science
Something to Chew On
Researchers are closer than ever to making synthetic enamel to improve dental implants and perhaps to grow a whole tooth from scratch.
- Humans
From the December 8, 1934, issue
Goose barnacles, the formation of elements, and the nature of cosmic rays.
By Science News - Paleontology
Pieces of an Ancestor: African site yields new look at ancient species
Fossils unearthed at sites in eastern Africa provide a rare look at Ardipithecus ramidus, a member of the human evolutionary family that lived more than 4 million years ago.
By Bruce Bower - Plants
Mommy Greenest
Green leafy moms take care of their offspring in ways that go beyond wrapping them in nice, snug seed coats and packing a nutritious lunch for them.
By Susan Milius -
Kibble for Thought: Dog diversity prompts new evolution theory
A genetic mutation that researchers have examined in several dog breeds may drive evolution in many other species.