6,899 results
6,899 results for: Bears
- Animals
Mom bears more sons when she gets extra bouquets
When researchers spiff up a male starling's courtship by delivering some extra bouquets to his mate on his behalf, the couple tends to produce more sons than usual.
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Cancer Flip-Flop: Gene acts in both proliferation and control of growth
Scientists have identified what might be a new class of cancer-controlling genes that alternates between halting and promoting cancer.
- 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.
- Astronomy
Big Smash: Galaxy clusters in collision
Astronomers have unveiled the most detailed image ever taken of the collision of two clusters of galaxies.
- Planetary Science
Mars Rovers: New evidence of past water
Twin rovers on opposite sides of the Red Planet have found additional evidence that liquid water once flowed there.
- Physics
Graphite in Flatland: Carbon sheets may rival nanotubes
Researchers have created freestanding carbon films as thin as one atom.
- Earth
Fighting Water with Water: To lift the city, pump the sea beneath Venice
With technology commonly used in oil fields, engineers could inject large volumes of seawater into sandy strata deep beneath Venice, Italy, to reverse the ground subsidence that plagues the city.
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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.
- Anthropology
Fossil ape makes evolutionary debut
Newly discovered fossils from an ape that lived in what's now northeastern Spain around 13 million years ago may hold clues to the evolutionary roots of living apes and people.
- 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.
- Chemistry
Hungry for Hydrogen: Microbes in hot springs feed on unlikely source
Microbes dwelling in Yellowstone National Park's hot springs draw their energy not from sulfur but from hydrogen.
- Paleontology
Groovy Bones: Mammalian ear structure evolved more than once
Fossils of an ancient egg-laying mammal indicate that the characteristic configuration of the bones in all living mammals' ears arose independently at least twice during the group's evolution.
