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6,867 results for: Bears
- Earth
Two microbes team up to munch methane
Aggregates of two different microorganisms in methane-bearing ocean sediments collected off the Oregon coast appear to collaborate to consume methane despite a lack of oxygen.
By Sid Perkins - Earth
Dead Heat
New studies suggest that adverse health effects related to global warming aren't just a theoretical concern for the distant future.
By Sid Perkins -
They’re Sequencing a What?
Announcements of new targets for genome sequencing are bringing celebrity to lesser-known twigs on the tree of life.
By Susan Milius -
The Bad Seed
Researchers are racing to identify tumor-forming stem cells in skin, lung, pancreatic, and many other cancers.
By John Travis - Planetary Science
Red Planet Makes a Splash: Rover finds gush of evidence for past water
A robotic rover on Mars has gathered what scientists are calling the best evidence to date that liquid water once flowed on the Red Planet.
By Ron Cowen - Physics
Extreme Impersonations
By creating tiny clouds of remarkable new kinds of ultracold gases, physicists are, in essence, bringing to their lab benches chunks of some of the most extraordinary and hard-to-study matter in the universe.
By Peter Weiss -
Don’t Let the Bugs Bite
Using disease-control strategies based on genetic engineering, scientists are working to counter Chagas' disease, malaria, sleeping sickness, and other insectborne infections.
By Ben Harder - Tech
Special Delivery: Metallic nanorods shuttle genes
A new gene therapy technique relies on nanorods made of gold and nickel to deliver genes to cells in the body.
- Physics
Two New Elements Made: Atom smashups yield 113 and 115
Two new elements—115 and 113—have joined the periodic table.
By Peter Weiss - Plants
Smokey the Gardener
Wildfire smoke by itself, without help from heat, can trigger germination in certain seeds, but just what the vital compound in that smoke might be has kept biologists busy for years.
By Susan Milius - Earth
Attack of the Rock-Eating Microbes!
Geologists who examine mineral transformations increasingly see bacteria at work, leading the scientists to conclude that if microbes aren't driving the underlying chemical reactions, at least they're taking advantage of the energy that's released.
By Sid Perkins - Paleontology
L.A.’s Oldest Tourist Trap
Modern excavations at the La Brea tar pits are revealing a wealth of information about local food chains during recent ice ages, as well as details about what happened to trapped animals in their final hours.
By Sid Perkins