6,901 results
6,901 results for: Bears
- 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.
- Paleontology
A new saber-toothed mammal was among the first hypercarnivores
A 42-million-year-old jawbone with slicing teeth and a gap to fit saberlike teeth is pegged to a new species of the mysterious Machaeroidine group.
- Earth
The mysterious Hiawatha crater in Greenland is 58 million years old
An impact crater spotted in 2015 in Greenland is far too old to be connected to the Younger Dryas cold snap from 13,000 years ago, a study suggests.
- Neuroscience
How a scientist-artist transformed our view of the brain
The book ‘The Brain in Search of Itself’ chronicles the life of Santiago Ramón y Cajal, who discovered that the brain is made up of discrete cells.
- Paleontology
Scientists are arguing over the identity of a fossilized 10-armed creature
An ancient cephalopod fossil may be the oldest ancestor of octopuses, but the interpretation hinges on the identification of one feature.
- Astronomy
How ‘hot Jupiters’ may get their weirdly tight orbits
Gravitational kicks from other planets and stars can send giant worlds into orbits that bring them close to their suns.
- Anthropology
Homo sapiens bones in East Africa are at least 36,000 years older than once thought
Analyses of remnants of a volcanic blast push the age of East Africa’s oldest known H. sapiens fossils at Ethiopia’s Omo site to 233,000 years or more.
- Animals
Here are 7 incredible things we learned this year that animals can do
From wielding weapons to walking on the underside of water, these are the creature capabilities that most impressed us in 2021.
- Anthropology
Ancient footprints suggest a mysterious hominid lived alongside Lucy’s kind
A previously unknown hominid species may have left its marks in muddy ash about 3.66 million years ago in what is now East Africa.
- Earth
Scientists are racing to save the Last Ice Area, an Arctic Noah’s Ark
The Last Ice Area may be the final refuge for summer sea ice and the creatures that depend on it. Saving it is an ambitious goal with many hurdles.
- Climate
How a warming climate may make winter tornadoes stronger
A climate simulation suggests that higher winter temperatures could make twisters more powerful.
- Health & Medicine
How sleep may boost creativity
In a lab experiment, people who had fallen into a shallow sleep were more likely than non- or deep sleepers to later discover a sly math trick.
