6,904 results
6,904 results for: Bears
- Life
Even hard-to-kill tardigrades can’t always survive being shot out of a gun
A recent experiment put tardigrades’ indestructibility to the test by firing the critters at speeds up to 1,000 meters per second.
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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.
- 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.
- Science & Society
Gender-affirming care improves mental health for transgender youth
Several state legislatures have taken steps to restrict access to gender-affirming health care for transgender adolescents. That goes against medical guidelines.
- 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.
- Anthropology
Israeli fossil finds reveal a new hominid group, Nesher Ramla Homo
Discoveries reveal a new Stone Age population that had close ties to Homo sapiens at least 120,000 years ago, complicating the human family tree.
- Earth
A WWII submarine-hunting device helped prove the theory of plate tectonics
With a boost from World War II, the fluxgate magnetometer became a portable and invaluable tool.
- Ecosystems
Wild donkeys and horses engineer water holes that help other species
Dozens of animals and even some plants in the American Southwest take advantage of water-filled holes dug by these nonnative equids.
- 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.
- Life
Only 3 percent of Earth’s land hasn’t been marred by humans
A sweeping survey of terrestrial ecosystems finds that vanishingly little land houses all the animals it used to. Species reintroductions could help.
- Astronomy
The ‘USS Jellyfish’ emits strange radio waves from a distant galaxy cluster
The unusual pattern of radio waves dubbed the USS Jellyfish tells a story of intergalactic gas meeting black hole by-products.
