Fat Bear Week 2026: Celebrating Alaska’s Brown Bears and Ecosystem Conservation

Each fall, millions gather to witness the world’s fattest brown bears bulk up on salmon at Alaska’s Katmai National Park before hibernation. Fat Bear Week, once an online oddity, now stands as a major wildlife event in the U.S. spotlighting the area’s annual salmon run and stressing the need for thriving ecosystems.

Competition Highlights

The stars of Fat Bear Week 2026 are larger than ever, but the event encompasses more than just which bear gains the most weight before hibernation. This year’s contest showcases defending champions, emerging heavyweights, and bears with amazing survival tales. Reigning champion 32 Chunk, famous for overcoming a broken jaw to win last year, faces new challenges. 164 Bucky Dent, an ace fisher and rising fan favorite, boasts notable salmon-catching abilities.

As voting heats up, fans focus on whether Chunk retains his title, if veteran 151 Walker steps back into the limelight, or if newcomers like 903 Gully use their popularity to clinch the crown. While fatness may determine the outcome, the bear stories keep millions returning annually.

Notable Contenders

“In 2025, he returned with a broken jaw and missing teeth but continued to feed successfully.”

32 Chunk holds a premier position in Fat Bear Week at Katmai National Park. Chunk’s significant weight gain during salmon season transforms him from a slim summer bear to one of the river’s largest by autumn. Photo evidence of his dramatic weight gain makes him a strong competitor, heralding pre-winter success.

164 Bucky Dent is poised to challenge Chunk. Known as a top-tier fisher, Bucky Dent captures interest at Brooks River with unmatched skill. Although younger than some Katmai veterans, he symbolizes the upcoming generation of dominant male bears with a growing fan base.

151 Walker, a seasoned Brooks River presence, consistently commands prime fishing spots. His enduring size and self-assurance make him a durable threat when voting starts.

903 Gully intrigues fans, carrying on the legacy of past champion 128 Grazer. Gully, famed for balancing his salmon diet with gulls, sparred with Walker for fish this summer, offering viewers insight into the park’s bear dynamics.

Conservation Concerns

While celebrating Katmai’s brown bears, Fat Bear Week underscores the necessity of preserving the environments enabling their weight gain. The Katmai Conservancy stresses that healthy salmon runs sustain the bear population, with disruptions potentially impacting bears, birds, fish, and other local wildlife relying on shared resources.

Climate change is another threat. Observed shifts in temperature and seasonal patterns can affect migration and hibernation timings. Altered food availability may impact bears’ ability to gain necessary weight, affecting survival and reproduction.

The bears’ global fame has shone a spotlight on Katmai National Park. Conservationists advocate responsible tourism, habitat protection, and ongoing research to ensure future generations experience these spectacular wildlife events.

How Voting Works

Fat Bear Week starts with matchups letting the public choose favorite bears based on photos taken in summer and peak fall feeding. Voting begins Tuesday, September 22 at noon ET and lasts until September 29. Each round narrows contenders until a champion emerges. Fans vote online and campaign for their favorites, transforming the competition into a lively online event.