Ahead of winter hibernation, Alaska celebrates Fat Bear Week

Brown bear 151 stands in a river hunting for salmon to fatten up before hibernation at Katmai National Park and Preserve in Alaska, U.S. September 13, 2021. Picture taken September 13, 2021. Lian Law/U.S. National Park Service/Handout via REUTERS

ANCHORAGE, Alaska (Reuters) - In Alaska, leaves are falling, daylight is dwindling and salmon-devouring brown bears are racing the clock to pack on the pounds they need to survive their winter hibernation.

Unbeknownst to the enormous bruins, some of them are also competing in Katmai National Park and Preserve's Fat Bear Week, Alaska's annual celebration of gluttony and nature's abundance.