Two year old triplet cubs wait while their mother fishes for salmon in Brooks River, Katmai National Park, Southwest Alaska

Man compares his hand to the footprint of a Brown Bear near Brooks Falls, Katmai National Park, Southwest Alaska

An alert Brown bear adult fishes for salmon in Brooks River, Katmai National Park, Southwest Alaska

A scarred brown bear stands to scratch his back along Brooks River, Katmai National Park, Southwest Alaska

Brown bears in the Jacuzzi at Brooks falls are trusting the confusion of this rolling water to help them catch salmon, Katmai National Park, Southwest Alaska

Brown bears (ursus arctic) play fighting; Alaska, United States of America

Brown bear (ursus arctos) sow spending time with her cub in the river; Alaska, United States of America

Brown bear (Ursus arctos) sow with three cubs resting on sandy shore of Brooks River, while school of sockeye salmon (Oncorhynchus nerka) swim in river in background, Katmai National Park and Preserve; Alaska, United States of America

Brown bears (Ursus arctos) fishing for sockeye salmon at Brooks Falls, Brooks River, Katmai National Park and Preserve, Southwest Alaska

Brown Bear And Salmon Brooks Falls Katmai Natl Park Sw Ak Summer Scenic

Brown bears (Ursus arctos) standing in rapids above Brooks Falls, Brooks River while fishing for sockeye salmon, Katmai National Park and Preserve, Southwest Alaska

Brown bear (Ursus arctos) cub standing on boulder in Brooks River while mother is fishing for salmon, Katmai National Park and Preserve; Alaska, United States of America

Brown bear (Ursus arctos) cub climbing spruce tree, Katmai National Park and Preserve; Alaska, United States of America

Brown bear (Ursus arctos) cub stepping on boulder in Brooks River while mother is fishing for salmon, Katmai National Park and Preserve; Alaska, United States of America

Brown bear (Ursus arctos) in Brooks River above Brooks Falls carrying a Sockeye salmon, Katmai Nationial Park and Preserve, Southwest Alaska

Brown bear (Ursus arctos) yearling cub standing on base of birch tree on bank of Brooks River while mother is fishing for salmon, Katmai National Park and Preserve; Alaska, United States of America

Four Brown bears (Ursus arctos) wade in Brooks River while fishing for Sockeye salmon, Katmai National Park and Preserve, Southwest Alaska

A young mother and her cub fish along the banks of a small stream in Katmai National Park, Soutwest Alaska, Summer

Four brown bear cubs (ursus arctos) are in a row under a tree on the grassy bank of Brooks River; Alaska, United States of America

Sow with cubs play at Brooks falls, Katmai National Park, Southwest Alaska