Eric Baccega / Grizzly bear (Ursus arctos horribilis) catching salmon in Brooks river, Katmai National Park, Alaska, USA, July

Chase Dekker / Brown Bear (Ursus arctos) in river, Katmai National Park, Alaska

Eric Baccega / Female Grizzly bear (Ursus arctos horribilis) looking around and grooming, with four cubs playing nearby, Naknek Lake, Katmai National Park, Alaska, USA, July.

Loic Poidevin / Grizzly bears (Ursus arctos horribilis) fighting in water, Katmai National Park, Alaska, August

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) cub playing with mother, Katmai National Park, Alaska, USA, August

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) mother watching cub catching salmon, Katmai National Park, Alaska, USA, August

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) mother and cub in river, Katmai National Park, Alaska, USA, August

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) cubs with salmon, Katmai National Park, Alaska, August. Small reproduction only.

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) cubs with salmon, Katmai National Park, Alaska, August. Small reproduction only.

Suzi Eszterhas / Harbor Seal (Phoca vitulina) group, Katmai National Park, Alaska

Suzi Eszterhas / Brown Bear (Ursus arctos) mother and 3-4 month cubs foraging for clams, Katmai National Park, Alaska, USA. June.

Suzi Eszterhas / Brown Bear (Ursus arctos) mother and 3-4 month cubs foraging for clams. Katmai National Park, Alaska, USA, June.