6,907 results
6,907 results for: Bears
- Planetary Science
Granite likely lurks beneath the moon’s surface
Without plate tectonics or water, granite is hard to make. But a 50-kilometer-wide hunk sits beneath the moon’s surface, lunar orbiter data suggest.
- Microbes
Watch: Recent microbial discoveries are changing our view of life on Earth
Videos capture the strange movements and predatory styles of protists — among the closest microbial cousins to multicellular life.
- Physics
Superconductor research surges forward despite controversy over stunning claims
After retractions from Ranga Dias’ group, high-pressure physicists are feeling the squeeze, fearing the controversy will tarnish other research.
- Archaeology
Indigenous input revealed early hints of fiber making in the tropics
To decipher marks on nearly 40,000-year-old stone tools and figure out what they were used for, researchers turned to the Philippines’ Pala’wan people.
- 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.
- Animals
Hibernating bears don’t get blood clots. Now scientists know why
People who sit still for hours have an increased risk of blood clots, but hibernating bears and people with long-term immobility don’t. A key clotting protein appears to be the reason why.
- Tech
50 years ago, a balloon circumnavigated the world for science
A 1973 high-altitude flight kicked off an era of useful stratospheric balloon science. Some scientists worry that heightened concerns over alleged spy balloons might hamper that.
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The animal kingdom never ceases to amaze
Editor in chief Nancy Shute revels in the wonder of animals, from psychedelic toads to extinct pterosaurs.
- Archaeology
How Asia’s first nomadic empire broke the rules of imperial expansion
New studies reveal clues to how mobile rulers assembled a multiethnic empire of herders known as the Xiongnu more than 2,000 years ago.
- 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.
- 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.
- 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?
