Brown bears fighting in Katmai National Park, Alaska

Brown bears fighting in Katmai National Park, Alaska

USA, Katmai National Park, Brook Falls, Alaska. A Brown bear with a sockeye salmon in its mouth as another leaps over Brook Falls to escape to its spawning grounds.

USA, Katmai National Park, Brook Falls, Alaska. A Brown bear pounces on a sockeye salmon as it prepares to leap over Brook Falls on its way to spawning grounds.

United States, Alaska, Katmai national park, Brooks river, sockeye salmon

USA, Alaska, Katmai National Park, Underwater view of spawning Red Salmon (Oncorhynchus nerka) along Kuliak Bay.

USA, Alaska, Katmai National Park, Coastal Brown Bear (Ursus arctos) swims across salmon spawning stream by Kuliak Bay.

USA, Alaska, Katmai National Park, Coastal Brown Bear (Ursus arctos) catches Red Salmon (Oncorhynchus nerka) in spawning stream along Kaflia Bay.

USA, Alaska, Katmai National Park, Grizzly Bear Cubs (Ursus arctos) walking along Kukak Bay before sunrise on late summer morning

USA, Alaska, Katmai National Park, Grizzly Bear (Ursus arctos), Kukak Bay

USA, Alaska, Katmai National Park, Kukak Bay, Brown Bears (Ursus arctos) sparring in meadow at sunrise on late summer morning

USA, Alaska, Katmai National Park, Kukak Bay, Brown Bear (Ursus arctos) fishing for spawning salmon in small stream in late summer

USA, Alaska, Katmai National Park, Kukak Bay, Brown Bear (Ursus arctos) chases spawning salmon in small stream at dusk on late summer evening

USA, Alaska, Katmai National Park, Brown Bears (Ursus arctos) sparring in meadow along Hallo Bay

USA, Alaska, Katmai National Park, Brown bear (Ursus arctos) lies on back in meadow along Hallo Bay

Tourists photographing Brown Bear catching salmon at Brooks Falls, Katmai National Park, Alaska, USA

Salmon jumping over Brooks Falls, Katmai National Park, Alaska, USA

Female coastal brown bear and cubs, Katmai National Park, Alaska, USA

Paws of a brown bear (ursus arctos horribilis) fishing for salmon at the Brooks Falls, in Katmai National Park and preserve, Alaska

Brown bear (ursus arctos horribilis) fishing for salmon at the brooks falls, brooks river, Katmai National Park and preserve

Brown bear silhouette at sunrise in Katmai National Park and Preserve, Alaska.

USA, Katmai National Park, Brook Falls, Alaska. Two Brown bear cubs stand on their hind legs playing.

USA, Katmai National Park, Brook Falls, Alaska. Two Brown bear cubs stand on their hind legs to check their surroundings for danger.

USA, Katmai National Park, Brook Falls, Alaska. A Brown bear catches a sockeye salmon as it leaps over Brook Falls straight into the bear"s mouth.

USA, Katmai National Park, Brook Falls, Alaska. A Brown attempts to catch a sockeye salmon as it leaps over Brook Falls on its way to spawning grounds.

USA, Katmai National Park, Brook Falls, Alaska. An Arctic Lupine.

USA, Katmai National Park, Brook Falls, Alaska. Brown bears wait to catch sockeye salmon as they leap over Brook Falls on their way to their spawning grounds.

USA, Katmai National Park, Brook Falls, Alaska. An immature Brown bear stands on its hind legs to survey its surroundings.

USA, Katmai National Park, Brook Falls, Alaska. Brown bears wait to catch sockeye salmon as they leap over Brook Falls on their way to their spawning grounds.

USA, Alaska, Katmai National Park. Grizzly Bear, Ursus Arctos, sitting along a steam and rubbing his head in Geographic Harbor.

USA, Alaska, Katmai National Park, Kukak Bay. Scenery in Kukak Bay.

USA, Alaska, Katmai National Park, Hallo Bay. Sunrise over the ocean.

USA, Alaska, Katmai National Park, Hallo Bay. Coastal Brown Bear, Grizzly, Ursus Arctos. Grizzly bear mother getting a drink with her twin spring cubs.

USA, Alaska, Katmai National Park, Hallo Bay. Coastal Brown Bear, Grizzly, Ursus Arctos. Close-up of a grizzly bear walking on a beach.

USA, Alaska, Katmai National Park, Hallo Bay. Coastal Brown Bear, Grizzly, Ursus Arctos. Twin grizzly bear cubs playing and wrestling.

USA, Alaska, Katmai National Park, Hallo Bay. Coastal Brown Bear, Grizzly, Ursus Arctos. Eye contact through the grass.

Brown Bear and her cubs, Katmai National Park, Alaska

Foggy forest landscape, Katmai National Park, Alaska

Grizzly Bear (Ursus arctos horribilis) walking on the beach with an unidentified Flounder in its mouth, USA, Alaska, Katmai National Park