Eric Baccega / Grizzly bear (Ursus arctos horribilis) catching salmon in Brooks river, 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 / 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.

Oliver Scholey / Grizzly bear (Ursus arctos horribilis) female with cub riding on back, Katmai National Park, Alaska, USA, August.

Oliver Scholey / Grizzly bear (Ursus arctos horribilis) Katmai National Park, Alaska, USA, August.

Denis-Huot,Denis-Huot / Grizzly bears (Ursus arctos horribilis) looking for salmon, Brooks river, Katmai national park, Alaska, North America,

Steven Kazlowski / Grizzly bear (Ursus arctos horribilis) young rare blonde (white) bear plays with a young dark coloured bear along the coast of Katmai National Park, Alaskan peninsula, USA

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) attempting to catch salmon leaping up rapids, Katmai National Park, Alaska, USA

Loic Poidevin / Salmon landing on head of Grizzly bear (Ursus arctos horribilis) as it is leaping up rapids, Katmai National Park, Alaska, USA

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) salmon fishing in river rapids, Katmai National Park, Alaska, USA

Loic Poidevin / Grizzly bear (Ursus arctos horribilis) salmon fishing in river rapids, Katmai National Park, Alaska, USA

Mary McDonald / Grizzly Bear (Ursus arctos horribilis) male in water. Coastal Katmai National Park, southwest Alaska, USA, August.

Andy Rouse / Grizzly bear (Ursus arctos horribilis) leaping through water chasing salmon, Katmai NP, Alaska, USA, September, (01360399 is a crop of this image)

Andy Rouse / Grizzly bear (Ursus arctos horribilis) leaping through water chasing salmon, Katmai NP, Alaska, USA, September, (crop of image 01360394) Not available for ringtone/wallpaper use.

Andy Rouse / Grizzly bear (Ursus arctos horribilis) fishing in landscape, Katmai NP, Alaska, USA, August

Andy Rouse / Silhouette of Grizzly bear (Ursus arctos horribilis) walking along beach, Katmai NP, Alaska, USA, August

Andy Rouse / Silhouette of Grizzly bear (Ursus arctos horribilis) walking along beach, Katmai NP, Alaska, USA, August

Andy Rouse / Grizzly bears (Ursus arctos horribilis) hunting for salmon on river, Katmai NP, Alaska, USA, August

Andy Rouse / Grizzly bear (Ursus arctos horribilis) shaking dry after fishing for salmon, Katmai NP, Alaska, USA, August

Andy Rouse / Grizzly bear (Ursus arctos horribilis) mother with two cubs, Katmai NP, Alaska, USA, August

Andy Rouse / Two Grizzly bears (Ursus arctos horribilis) male (right) and female fighting over salmon, Katmai NP, Alaska, USA, August

Andy Rouse / Two Grizzly bears (Ursus arctos horribilis) male (right) and female fighting over salmon, Katmai NP, Alaska, USA, August

Eric Baccega / Grizzly bear (Ursus arctos horribilis) mother and four spring cubs, walking along dirt track, Katmai National Park, Alaska, USA, July

Suzi Eszterhas / Harbour / Common Seal (Phoca vitulina) moving from an exposed rock into the water, Katmai National Park, Alaska, USA

Eric Baccega / Grizzly bear (Ursus arctos horribilis) mother with three cubs, 18 months, fishing on Brooks falls, Brooks river, Katmai National Park, Alaska, USA, July

Eric Baccega / Grizzly bear (Ursus arctos horribilis) mother with three cubs (18 months) fishing on Brooks falls, Brooks river, Katmai National Park, Alaska, USA, July

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

Eric Baccega / Brown grizzly bear {Ursus arctos horribilis} mother with cubs at Brooks River, Katmai National Park, Alaska, USA

Eric Baccega / Female Grizzly bear {Ursus arctos horribilis} with three (18-month) cubs, fishing salmon in Brooks River, Katmai National Park, Alaska, USA.

Eric Baccega / Grizzly bear (Ursus arctos horribilis) female with cubs on alert, Brooks River, Katmai National Park, Alaska, USA

Pete Cairns / Grizzly / Brown bear {Ursus arctos} shaking off water, Katmai NP. Alaska.

Lynn M Stone / Brown bear walking in landscape {Ursus arctos} Katmai National Park, Alaska, USA

Hans Christoph Kappel / Brown bears fishing for salmon, Katmai National Park, Alaska

Hans Christoph Kappel / Brown bear catches salmon, Katmai National Park, Alaska

Hans Christoph Kappel / Brown bear catches salmon Katmai NP, Alaska, USA

Hans Christoph Kappel / Brown bears (Ursus arctos) fishing for salmon. Katmai NP, Alaska

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

Chase Dekker / Brown Bear (Ursus arctos) feeding on sedge grass, Katmai National Park, Alaska

Benjamin Olson / Brown Bear (Ursus arctos) male foraging for salmon, Katmai National Park, Alaska

Matthias Breiter / Grizzly Bear (Ursus arctos horribilis) adult female nursing her two yearling cubs on sedge flats, Katmai National Park, Alaska