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.

During Autumn in the Tetons, it is evident the black bears are eating as much as they can. Each day we would observe several bears climb up into 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

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