Matthias Breiter / Black Bear (Ursus americanus) cub in tree safe from danger, Orr, Minnesota

Matthias Breiter / Black Bear (Ursus americanus) juvenile male in tree, Orr, Minnesota

Sumio Harada / Fireweed (Chamerion angustifolium) and Bear Grass (Xerophyllum tenax) two months after fire, Glacier National Park, Montana

Sumio Harada / Bear Grass (Xerophyllum tenax) roots re-growing two months after fire, Glacier National Park, Montana

Sumio Harada / Bear Grass (Xerophyllum tenax) roots re-growing two months after fire, Glacier National Park, Montana

Sumio Harada / Bear Grass (Xerophyllum tenax) roots re-growing two months after fire, Glacier National Park, Montana

Yva Momatiuk & John Eastcott / Please do not feed bears warning sign, Manti la Sal National Forest, Utah

Ingo Arndt / Bear warning sign, Grand Teton National Park, Wyoming

Michael Durham / Black Bear (Ursus americanus) at night shot with a remote camera, de-commissioned army camp, Bonneville, Washington

Mark Raycroft / Black Bear (Ursus americanus) two playful yearling cubs in tree, northern Minnesota

ZSSD / Brown Bear (Ursus arctos) gnawing on bone, San Diego Zoo, California

ZSSD / Sun Bear (Helarctos malayanus) cub clinging to tree, San Diego Zoo, California