6,899 results
6,899 results for: Bears
- Paleontology
These fossil finds shed new light on the past in 2025
The year's top paleontological wonders ranged from a 540-million-year-old penis worm to a decades-old rodent impression.
- Earth
Even epic rainfall may not be enough to refill SoCal’s aquifers
More than a dozen atmospheric rivers dumped rainfall on California in 2023 but replenished only 25 percent of the water lost from aquifers since 2006.
- Climate
What to know about the extreme U.S. flooding — and ways to stay safe
An oceanographer explains how climate change, warming oceans and a souped-up atmosphere are creating conditions for deadly floods.
- Neuroscience
The unique neural wiring of the human hippocampus may maximize memory
Living tissue from the memory centers of people’s brains reveals sparse nerve cell connections that provide strong, reliable signaling between cells.
- Artificial Intelligence
A look under the hood of DeepSeek’s AI models doesn’t provide all the answers
A peer-reviewed paper about Chinese startup DeepSeek's models explains their training approach but not how they work through intermediate steps.
- Life
Early human ancestors didn’t regularly eat meat
Chemicals in the tooth enamel of Australopithecus suggest the early human ancestors ate very little meat, dining on vegetation instead.
- Life
Here are 8 remarkable scientific firsts of 2024
Making panda stem cells, mapping a fruit fly’s brain and witnessing a black hole wake up were among the biggest achievements of the year.
- Life
Dark coats may have helped the earliest mammals hide from hungry dinosaurs
During the age of dinosaurs, early mammals probably lacked the stripes and spots of their modern relatives, having uniformly dark, drab coats.
- Animals
Putting vampire bats on treadmills reveals an unusual metabolism
A bat gym shows that vampires are more like some insects, burning amino acids from blood proteins rather than the carbs or fats other mammals rely on.
- Science & Society
Our relationship with alcohol is fraught. Ancient customs might inspire a reset
As evidence of alcohol's harms mounts, some people are testing out sobriety. Look to ancient civilizations' ways for a reset, scholars suggest.
- Science & Society
Fired federal workers share the crucial jobs no longer being done
Thousands of probationary federal employees received termination notices. Many were doing crucial work at science-related agencies.
- Science & Society
Do science dioramas still have a place in today’s museums?
Science dioramas of yesteryear can highlight the biases of the time. Exhibit experts are reimagining, annotating — and sometimes mothballing — the scenes.
