6,778 results
6,778 results for: Bears
- Paleontology
Some of Earth’s extinct giants may have been smaller than thought
Evolving techniques and data indicate some ancient giants like Dunkleosteus and Megalodon may have been smaller than initial estimates suggested.
- Health & Medicine
Bird flu has infected a person after spreading to cows. Here’s what to know
H5N1 has wreaked havoc on birds around the globe and occasionally made the jump to mammals, including cows. The risk to people remains low.
- Climate
Summer-like heat is scorching the Southern Hemisphere — in winter
Warmer winters are fast becoming a global phenomenon and can affect everything from the food we grow to the spread of diseases.
- Animals
In a first, these bats were found to have toes that glow
Hairs on the toes of Mexican free-tailed bats fluoresce under UV light, a new study reports. The function of the toe glow is unknown.
- Space
These discoveries in 2024 could be groundbreaking — if they’re true
Did microbes ever live on Mars? Did an "elevator" help build Egypt’s first pyramid? Some signs pointed to yes this year, but confirmation is still needed.
- Psychology
Survivors of the LA fires will face a complex blend of mental health challenges
Logistical needs, like employment and housing, along with psychological needs must be met after disasters like the LA wildfires, research shows.
- Planetary Science
Sulfur was key to the first water on Earth
Hydrogen bonded with sulfur may have given our world its first water after the hydrogen broke away and joined with oxygen in the planet’s crust.
- Life
Mega El Niños kicked off the world’s worst mass extinction
Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.
- Life
These are our favorite animal stories of 2024
Pigeons that do somersaults, snakes that fake death with extra flair and surprised canines are among the organisms that enthralled the Science News staff.
- Planetary Science
Scientists find a long-sought electric field in Earth’s atmosphere
The Earth’s ambipolar electric field is weak but strong enough to control the shape and evolution of the upper atmosphere.
- Animals
The Brazilian flea toad may be the world’s smallest vertebrate
Brazilian flea toads are neither a flea nor a toad, but they are almost flea-sized. The frogs are small enough to fit on a pinkie fingernail.
- Life
This is the first egg-laying amphibian found to feed its babies ‘milk’
Similar to mammals, these ringed caecilians make a nutrient-rich milk-like fluid to feed their mewling hatchlings up to six times a day.
