With winter just around the corner, bears are preparing for hibernation by entering a period of hyperphagia or excessive eating in order to build the necessary fat reserves to get them through the winter. During this period, black bears can gain 1-2 pounds per day.
This past week in the Tetons it was evident the black bears were eating as much as they could. Each day we observed several bears climb up in hawthorn trees, then devour as many berries as they could possibly reach before moving on to the next tree.
Black Bear (Ursus americanus) - Grand Teton National Park, Wyoming