Bear Butter: Why Dozens of Grizzlies Climb Mountains to Eat Moths

A recently posted video highlights among the more fascinating food-getting behaviours of the North American grizzly bear—and is also raising concerns familiar in our contemporary age of social-media hype about the potential impacts of drawing attention to sensitive wildlife habitat. The video diary in question comes from wildlife filmmaker Casey Anderson and an arduous dayhike high up in the Absaroka Range of the Greater Yellowstone Ecosystem (GYE) in the western United States. Posted last month to his Endless Venture YouTube channel, it documents a notable ursid tradition that, in fact, is...