6,867 results
6,867 results for: Bears
- Earth
A mineral found in a diamond’s flaws contains the source of some of Earth’s heat
A mineral theorized to exist in the mantle was found hiding in a diamond. Dubbed davemaoite, it could explain where some of Earth’s heat comes from.
- Animals
Some wasps’ nests glow green under ultraviolet light
Some Asian paper wasps’ nests fluoresce so brilliantly that the glow is visible from up to 20 meters away.
- Oceans
The Southern Ocean is still swallowing large amounts of humans’ carbon dioxide emissions
A 2018 study suggested the ocean surrounding Antarctica might be taking up less CO₂ than thought, but new data suggest it is still a carbon sink.
- Astronomy
Distant rocky planets may have exotic chemical makeups that don’t resemble Earth’s
Elements sprinkled on white dwarf stars suggest that the mantles of faraway rocky worlds differ greatly from their counterparts in our solar system.
- Humans
Eating meat is the Western norm. But norms can change
A meat-heavy diet, with its high climate costs, is the norm in the West. So social scientists are working to upend normal.
- Climate
Climate change could make Virginia’s Tangier Island uninhabitable by 2051
Tangier Island could be lost to rising seas sooner than previously realized. Whether to save the island or move its residents remains undecided.
- Anthropology
Hunter-gatherers first launched violent raids at least 13,400 years ago
Skeletons from an ancient African cemetery bear the oldest known signs of small-scale warfare.
- Animals
Mouse sperm thrived despite six years of exposure to space radiation
A space station experiment suggests future deep-space explorers don’t need to worry about passing the effects of space radiation on to their children.
- Astronomy
Signs of a hidden Planet Nine in the solar system may not hold up
Hints of a remote planet relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping is an illusion.
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Tasking trees with averting the climate crisis is a big ask
Editor in chief Nancy Shute discusses whether planting trees can help us avert the climate crisis, or if it is another quick-fix gimmick.
- Science & Society
An ecologist’s new book gets at the root of trees’ social lives
In ‘Finding the Mother Tree,’ Suzanne Simard recounts how she discovered hidden networks in forests.
- Archaeology
Stone Age culture bloomed inland, not just along Africa’s coasts
Homo sapiens living more than 600 kilometers from the coast around 105,000 years ago collected crystals that may have had ritual meaning.
