To initially fit the bears with the collar cams, the researchers tracked them through the snow by helicopter last May.

The videos provide short but revealing snapshots of daily bear life, including playing or sparring with other bears, gnawing ...

According to wildlife filmmaker Casey Anderson, the grizzly bear might be the greatest forager. Having closely observed the Yellowstone grizzly’s diet and eating habits, he’s seen them dig up caraway ...

The videos they record — many partially obscured by the undersides of whiskery muzzles — show the bears playing or fighting ...