6,775 results
6,775 results for: Bears
- Archaeology
Stone Age folk in Asia adapted to extremes
Preliminary evidence indicates that people occupied the harsh, high-altitude environment of Asia's Tibetan Plateau in the late Stone Age, between 11,000 and 12,000 years ago.
- Earth
It’s a Rough World
Scientists are using fractals, mathematical forms that can describe objects with fractional dimensions, to model phenomena such as wildfire propagation and the spread of toxic fluids through rocks and soil.
- Earth
Avalanche!
Laboratory studies of how snow crystals change shape under fluctuating environmental conditions and computer analyses that match the patterns of past avalanches with detailed meteorological data are helping scientists uncover the secrets of avalanches.
-
When parents let kids go hungry
Researchers comparing Northern and Southern birds have confirmed a prediction about parents protecting themselves at their offsprings' expense.
- Astronomy
Andromeda feasts on its satellite galaxies
A new study reveals that the Andromeda galaxy, the nearest large galaxy to the Milky Way, is a cannibal, devouring its tiny galactic neighbors.
- Anthropology
Earliest Ancestor Emerges in Africa
Scientists have found 5.2- to 5.8-million-year-old fossils in Ethiopia that represent the earliest known members of the human evolutionary family.
-
Tree pollen exploits surrogate mothers
An Algerian cypress releases pollen that can develop without fertilization, using another tree species' female organs instead of a mate's.
-
Depression linked to heart deaths
In a community sample, people suffering from moderate to severe depression exhibited an elevated death rate from heart disease over a 4-year study period, even if they had no discernable heart disease to begin with.
-
The Lives of Pandas
On a tight energy budget, newborns no bigger than chipmunks grow into roly-poly superstars.
-
From the March 14, 1931, issue
NEW WELDED PIPE LINE CARRIES WATER TO SAN DIEGO On the front cover of this weeks SCIENCE NEWS LETTER, the cameraman has caught two electric arc welders tying in an important section of a 19-mile-long steel serpent, 40 inches in diameter in some places and 36 inches in others, that will carry water from reservoirs […]
- Anthropology
Evolving in Their Graves
Understanding what early, rudimentary burials meant to modern humans' antecedents—assuming early humans did, in fact, bury their dead—could help anthropologsts untangle a lasting mystery of human evolution.
- Health & Medicine
Natural antidepressant has its limits
St. John's wort, a popular ingredient in herbal remedies, may not help people with moderate or severe forms of depression.
