When a brown bear crawls out of its den in March it has an intense need for meat. This makes it a direct competitor with wolves, find researchers in several countries.
Maned wolf Smithsonian's National Zoo and Conservation Biology Institute
Grizzly bear caught stealing dinner from wolves •
Bear Hibernation: 5 Fun Facts - Yellowstone Forever, bears
Wildlife Haven takes in starving, mangy fox
Large-brown-bear-ursus-arctos-demonstrates-its-acute-sense-of-smell-crucial-for-hunting-foraging-and-hibernation-as-it-sniffs-and-marks-its-territory-in-a
Animal Behavior: Would a lone adult wolf be able to take down an unarmed, athletic adult human? - Quora
TIME for Kids A Bear's Life, bear
Brown bears vie with wolves for food
Brown bears vie with wolves for food, bear
What is the hierarchy of an alpha wolf/bear/etc.? - Quora
