During annual sockeye salmon runs, brown bears at Brooks River in Alaska’s Katmai National Park employ a variety of fishing techniques. Because the fish are plentiful, bears can stand in the river and wait to grab jumping fish out of the air. As the salmon numbers dwindle by mid-summer, bear snorkel on the surface, looking for fish down below. The most unusual technique is full-body diving made famous by Diver, an enormous brown bear who reigned over the Brooks River in the 1980s and ’90s.
‘Wait! So is this a hypothesis, a theory, or a fact?’