The chunkiest challenge of the year is here — Fat Bear Week. Fat Bear Week began on Sept. 23. Each year, the burly bears of Katmai National Park and Preserve in Alaska capture global attention in a ...

Maintenance workers at Katmai National Park in Alaska spotted 2025 Fat Bear Week champion Chunk. In a video shared by Katmai ...

Fat Bear Week is back at Katmai National Park and Preserve. The March Madness-style bracket competition pits some of Katmai National Park and Preserve's bulkiest and most beloved brown bears against ...

Fat Bear Week 2025 is upon us, and the burliest bears of Katmai National Park have been working hard all season to chonk up for the annual competition, with the lineup of competitors dropping today, ...

ALASKA, USA — The bears are back, and they are absolutely massive. Alaska's Brooks River is once again hosting nature's most delightfully chunky competition as Fat Bear Week returns for its 11th year ...

Bear fans worldwide can watch the bears of Katmai National Park and Preserve bulk up on salmon and vote for their favorite starting Sept. 23 Fat Bear Week is back, accepting votes Sept. 23 through ...

Footage shows a hibernation-slimmed Chunk walking on snow in search of a snack.

Katmai Stories creates children’s books inspired by real bears, real parks, and real moments experienced by millions through wildlife cameras and travel. The National Park Bear Adventures series aims ...

Fat Bear Week is an annual competition where fans vote for the fattest bear at Katmai National Park and Preserve. The event runs from Sept. 23 to Sept. 30, with daily voting on the explore.org website ...