America's most keenly awaited animal competition has come to its corpulent conclusion, with Chunk named the winner of this year's Fat Bear Week .

The enormous beast chewed his way through thousands of kilograms (pounds) of salmon in Alaska's Katmai National Park to be voted the chubbiest bear in the tongue-in-cheek contest, which highlights the creatures' preparation for months of hibernation.

The bear – who had no idea he was competing – beat out a stiff challenge from two-time winner Grazer, denying her an unprecedented three-peat of which she was also entirely unaware.

Hundreds of thousands of votes were cast by people all over the world, who compared before-and-after pictures of the animals in a series of head-to-head ballots.

The contest began in 2014, aiming to raise awareness

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