A momma grizzly bear showed some tough love when her cub got scared crossing a fast-flowing river after being chased off by bison.
Photographer Ron Sterbenz of Minneapolis, Minnesota, was visiting Yellowstone National Park in mid-May when he caught a fascinating interaction on film. A female grizzly bear and her cub, who had their eyes on a long-dead bison carcass, were chased off by a protective bison herd and had to cross three different sections of the confluence between the Soda Butte and Lamar rivers.
