"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There once used to be up to 10,000 grizzly bears roaming California, but they eventually disappeared from ...

In this week's 7 Days of Science, there's some amazing news about the geology of Mars, some new research on tardigrades, and a new dinosaur species named! Become a Channel Member or support us on ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There once used to be up to 10,000 grizzly bears roaming California, but they eventually disappeared from ...

In a Russia rock formation once used as a quarry, an ancient gigantic bear jawbone was discovered. Elizabeth George via Unsplash Prehistoric creatures came in all shapes and sizes, from the towering ...

A segment of the polar bear population is at risk of extinction should ice-free periods continue to get longer, researchers have determined using analysis of the sea ice as well as the health of the ...