6,773 results
6,773 results for: Bears
- 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.
- Paleontology
Megatooth sharks may have been higher on the food chain than any ocean animal ever
Some megalodons and their ancestors were the ultimate apex predators, outeating all known marine animals, researchers report.
- Animals
Tardigrades could teach us how to handle the rigors of space travel
Tardigrades can withstand X-rays, freezing and vacuum. Now researchers are learning how they do it, with an eye toward human space travel.
- 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.
- Animals
Mary Roach’s new book ‘Fuzz’ explores the ‘criminal’ lives of animals
In “Fuzz: When Nature Breaks the Law,” author Mary Roach profiles mugging monkeys, thieving bears and other animal outlaws.
- Animals
Leeches expose wildlife’s whereabouts and may aid conservation efforts
DNA from the blood meals of more than 30,000 leeches shows how animals use the protected Ailaoshan Nature Reserve in China.
- 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.
- Earth
Rare earth mining may be key to our renewable energy future. But at what cost?
We take you inside Mountain Pass, the only rare earth mine in the United States.
- 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.
- 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.
- Earth
Earth is reflecting less light. It’s not clear if that’s a trend
A decrease in Earth’s reflectance shows our planet is absorbing more solar radiation, but it’s not clear if the trend will last.
- Paleontology
Feathers may have helped dinosaurs survive the Triassic mass extinction
New data show that dinosaurs were able to weather freezing conditions about 202 million years ago, probably thanks to warm feathery coats.
