Photo: Kodiak siblings tussle in the meadow

90 of 899
90 of 899

Kodiak brown bears (Ursus arctos middendorffi) are a unique subspecies of the brown or grizzly bear, which live exclusively on the islands in the Kodiak Archipelago and have been isolated from other bears for about 12,000 years, writes photographer Rick Derevan, who snapped these two siblings enjoying some afternoon playtime.

Would you like to see your nature photo featured as the TreeHugger photo of the day? Join TreeHugger’s Reader Photo Pool on Flickr and add your pictures to the group.

WHAT'S HOT ON FACEBOOK