Alaska Brown Bears Compete for Glory in Annual Fat Bear Week Tournament
Alaska brown bears are back for the annual Fat Bear Week tournament in Katmai National Park, where online voters will crown the heaviest and most successful bear of the season.

As the summer feeding frenzy wraps up, Alaska’s brown bears are preparing to show off their massive bulk in the traditional Fat Bear Week competition. Online voting has officially opened for the annual tournament, which pits the chunkiest bears of the Katmai National Park and Preserve against each other in a battle for the title of heaviest bear.
The Heavyweights Return
Chunk, last year’s reigning champion officially known as Bear 32, is eager to defend his crown. Chunk’s weight was estimated at a whopping 544 kilograms, securing him a narrow victory last season. This year, he faces stiff competition from heavy-hitters like Gully, also known as Bear 903, the offspring of Grazer, a formidable female brown bear who has claimed the coveted title twice in the past.
"Fat bears are successful bears," notes the non-profit organization behind the interactive initiative, which was founded in 2014 to educate the public about the rich ecosystem of Alaska's brown bears.
A Battle of Survival and Bulking
Unlike inland grizzly bears, coastal brown bears benefit from an abundance of migrating salmon, allowing them to grow significantly larger. Starting in June, these magnificent animals feast on sockeye salmon along the Brooks River, consuming up to 30 fish a day to build up essential fat reserves for the harsh winter months ahead. While adult males typically weigh between 270 and 410 kilograms in mid-summer, the largest males can easily surpass 450 kilograms by autumn.
The tournament features a 16-bear bracket in a single-elimination format, with voters deciding the winner based on "before and after" summer photos. Fans can watch the bears live via explore.org webcams before casting their votes at www.fatbearweek.org, with the ultimate champion set to be crowned on September 29.





