6,775 results
6,775 results for: Bears
- Chemistry
How hot was it?
Scientists have created heat-sensing polymers that indicate exposure to high temperatures by changing color under ultraviolet light.
- Ecosystems
Caviar Caveats
Caviar may become harder to find as a new trade ban goes into effect that's aimed at giving the most prized sturgeon a much-needed break from overfishing for their roe.
- Health & Medicine
Blood, Iron, and Gray Hair
Recent findings show that anemia is exceedingly common in elderly people and link the condition to severe health problems, including accelerated physical and mental decline and a shorter life span.
- Tech
Sensor measures mass of one DNA molecule
A new biosensor that can detect the mass of a single DNA molecule could lead to faster and more accurate screening for HIV infection, cancer, and other diseases.
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Concentrated Guidance: Attention training gives kids a cognitive push
A brief course on how to pay attention boosts children's scores on either intelligence or attention tests, depending on their age.
- Planetary Science
Renegade moon
Saturn's outlier moon Phoebe didn't coalesce from material near the ringed planet but was captured from the distant Kuiper belt.
- Planetary Science
The Whole Enceladus
Saturn's moon Enceladus has become the hottest new place to look for life in the chilly outer solar system.
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Bitty Beasts of Burden: Algae can carry cargo
Scientists have devised a way to make single-cell algae bear loads over distances of several centimeters, a tactic that could prove useful in tiny machines.
- Humans
From the August 31, 1935, issue
A turtle's trusty armor, a new growth stimulator, and the science of making cranberry jelly.
- Health & Medicine
Outwitting TB: Enhanced vaccine protects mice in lab tests
An enhanced vaccine appears to offer better protection against tuberculosis than the current version does, a study in mice suggests.
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19520
Early in our history, U.S. citizens ate bushmeat. We hunted deer, bear, squirrel, rabbit, possum, turkey, pheasant, armadillo, and other wild game. We hunted because it was easier to hunt than to earn the money necessary to buy meat. We diminished our supply of wild game. Africans are simply doing what we used to do. […]
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Turning Back Time: Embryonic stem cell rejuvenates skin cell
By fusing an embryonic stem cell with an adult skin cell, researchers have created cells that retain valuable embryonic characteristics but carry the adult cell's genes.
