6,898 results
6,898 results for: Bears
- Paleontology
Sea Dragons
About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.
- Health & Medicine
Missed ZZZ’s, More Disease?
New evidence suggests that chronic lack of sleep may be as important as poor nutrition and physical inactivity in the development of chronic illnesses such as obesity, diabetes, and cardiovascular disease.
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Save Our Sounds
Some 14 libraries around the world have built up substantial collections of natural sounds, from bird songs to fish hums.
- Materials Science
Materials with Memory
Metal alloys and polymers that can remember a preprogrammed shape may literally reshape technologies ranging from warfare to medicine and car repair.
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Get Rid of the Bodies
Scientists are learning how organisms safely clear out cell corpses.
- Earth
Clipping the Fin Trade
New research and policy developments aim to curb the wasteful and gruesome practice of killing sharks solely for their fins.
- Chemistry
Hydrogen: The Next Generation
Researchers are looking for more sustainable ways to generate hydrogen, which burns cleanly but is typically made from fossil fuel.
- Math
Election Selection
By ignoring how voters might rank all the candidates in an election, the plurality system opens the floodgates to unsettling, paradoxical results when there are three or more candidates.
- Animals
Mad Deer Disease?
Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.
- Earth
Hawaii’s Hated Frogs
Wildlife officials in Hawaii are investigating unconventional pesticides to eradicate invasive frogs—or at least to check their advance.
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Breathtaking Science
A small region within the brainstem creates the normal breathing rhythm.
- Animals
Camelid Comeback
The future of vicuñas in South America and wild camels in Asia hinges on decisions being made now about their management.
