6,869 results
6,869 results for: Bears
- Ecosystems
Some polar bears in Greenland survive on surprisingly little sea ice
“Glacial mélange” could provide a last refuge for some bears as the Earth warms, but climate action is needed to preserve the species, researchers say.
- Microbes
Ancient bacteria could persist beneath Mars’ surface
Radiation-tolerant microbes might be able to survive beneath Mars’ surface for hundreds of millions of years, a new study suggests.
- Astronomy
Alien life may be possible even at the Milky Way’s edges
Phosphorus detected far from the Milky Way’s center seems to extend the zone where life could exist in the galaxy by thousands of light-years.
- Psychology
An apology to Indigenous communities sparks a mental health rethink
The leading U.S. psychological association pledged to embrace Indigenous approaches to healing, which requires rethinking how to address mental health.
- Health & Medicine
Bird flu can jump to mammals. Should we worry?
Reports of bears and sea lions infected with H5N1 have sparked fears about the pandemic potential of bird flu. Experts are keeping a close eye on its spread.
- Paleontology
520-million-year-old animal fossils might not be animals after all
Newly described fossils of Protomelission gatehousei suggest that the species, once thought to be the oldest example of bryozoans, is actually a type of colony-forming algae.
- Science & Society
The Smithsonian’s ‘Lights Out’ inspires visitors to save the fading night sky
The exhibition examines how light pollution harms astronomy, ecosystems and human cultures. But it also offers hope.
- Archaeology
Ancient Maya power brokers lived in neighborhoods, not just palaces
Lidar discoveries and recent excavations are forcing archaeologists to rethink ancient Maya political structures.
- Life
Comb jellies have a bizarre nervous system unlike any other animal
A 3-D map of the comb jelly “nerve net” reveals fused neurons that lack the space, or synapses, most neurons use to communicate. Did it evolve independently?
- Archaeology
Ancient human DNA was extracted from a 20,000-year-old deer tooth pendant
Insights into Stone Age people’s lives may soon come from a new, nondestructive DNA extraction method.
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Good with tools? You may be a cockatoo
Editor in chief Nancy Shute talks about smart animals, from tool-using cockatoos to "self-aware" fish.
- Climate
Thawing permafrost may unleash industrial pollution across the Arctic
As the frozen ground warms due to climate change, industrial pollutants could flow free from thousands of sites across the Arctic.
