6,896 results
6,896 results for: Bears
- Anthropology
Scans tell gripping tale of possible ancient tool use
South African fossils contain inner signs of humanlike hands, indicating possible tool use nearly 3 million years ago.
- Genetics
The art of DNA folding
Cells must compress genetic material into a nucleus that measures only about 5 micrometers across. To accomplish the feat, cells make loops in the DNA.
- Genetics
Domestication did horses no genetic favors
Horses bear the cost of domestication in the form of harmful genetic variants, a study of equine DNA finds.
- Animals
China’s reindeer are on the decline
A small, semi-domesticated population of reindeer found in northern China is suffering due to threats ranging from inbreeding to tourism.
- Earth
Pumping carbon dioxide deep underground may trigger earthquakes
Injecting carbon dioxide deep underground offers a promising way to curb global warming, but the extra pressure may cause faults to slip or fractures to release the buried gas.
- Earth
Mineralogy’s link to ecology makes an Earth twin unlikely
Earth’s unique blend of minerals emerged with the evolution of life, making it extremely unlikely that another planet has Earth’s exact mineral composition.
- Ecosystems
Cities are brimming with wildlife worth studying
Urban ecologists are getting a handle on the varieties of wildlife — including fungi, ants, bats and coyotes — that share sidewalks, parks and alleyways with a city’s human residents.
- Science & Society
This study of hype in press releases will change journalism
A survey of press releases and their related scientific studies shows that hype may creep from press releases to news coverage. But this doesn’t give anyone at any stage of the news cycle a pass.
- Life
Springs bring gecko stickiness to human scale
Springs of a stretchy alloy let gecko-inspired adhesives work at human scales to climb glass walls or grab space junk.
- Planetary Science
Two travelers from far beyond Neptune return home
Two bodies approaching from the edge of the solar system may have been tossed out there by Jupiter over 4 billion years ago.
- Tech
Designing robots to help in a disaster
Ideally, robots could take over for human crews in disaster zones. But seemingly simple tasks, such as walking, communicating and staying powered up, still pose big challenges.
- Genetics
Genes tell tale of cat domestication
A peek into cats’ genetic makeup may help reveal how hissing wild felines became purring tabbies.
