The chunkiest of chunks face off in Alaska's Fat Bear Week

This image provided by the National Park Service shows 909 Jr. at Katmai National Park in Alaska on Sept. 12, 2024. (C. Cravatta/National Park Service via AP)

An Alaska national park's yearly celebration of the beefy, brown and bristly is getting underway as some of the chunkiest bears on the planet fatten up for their long winter slumber.

doesn't officially start at Katmai National Park and Preserve until Oct. 2, when fans can begin voting online for their favorite ursine behemoths in tournament-style brackets.

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