Each autumn in Alaska's Katmai National Park, brown bears engage in one of nature's most urgent rituals: the race to accumulate enough fat to survive half a year of sleep. This year, a bear named Backpack — son of a former champion, known for his quiet toughness and considerable mass — was voted winner of the thirteenth Fat Bear Week by a margin of just over five thousand votes. The competition, playful in its framing, points toward something ancient and serious: the thin line between preparation and perishing that every hibernating creature must navigate before winter closes in.
Backpack wins Alaska's Fat Bear Week in close contest with rival 910
A bear called Backpack won by the narrowest of margins
Mark
So this is basically a beauty pageant for bears?
Mimi
It's more than that. The competition celebrates something real—how well each bear has prepared for hibernation. The voting is fun, but the underlying biology is serious.
Luke
Right, but we should be clear: the votes don't measure actual fitness or survival odds. They measure public opinion about which bear looks the roundest. The bears' actual weights haven't been released.
Mark
Why would the park run this if it's just a popularity contest?
Mimi
It draws attention to the bears and their ecosystem. Over 1.7 million people voted last year from more than 100 countries. That's engagement with wildlife that wouldn't happen otherwise.
Luke
True. And the park is transparent about what this is—they call it a "battle of size, skill, snack acquisition, and strategic loafing." They're not pretending the vote determines anything biological.
Mark
What about Backpack specifically? Is he actually a remarkable bear?
Mimi
His biography says he has "quiet toughness" that lets him compete alongside the biggest bears at Brooks River. That's real—he's found a niche in a hierarchy where size matters enormously.
Luke
But we don't know if he's actually the fattest or the fittest. We know he won a vote. Those are different things.
Mark
Fair point. So what happens to him now?
Mimi
He enters hibernation. He'll sleep for up to six months, living off the fat he's accumulated. That's the real test—whether he survives the winter.
Luke
And we won't know how he fares until spring. The competition is really just a snapshot of one moment in autumn.
The Pulse
- With hibernation approaching, bears at Brooks River have only weeks to consume enough salmon to sustain themselves through six months without food or water.
- Backpack edged out Bear 910 by roughly 5,000 votes in a final round that sparked genuine debate about whose bulk was more deserving of the crown.
- Supporters of 910 argued she deserved recognition not just for her size but for raising both a biological cub and an adopted niece — a case for a broader definition of strength.
- Over 1.7 million votes from more than 100 countries poured in last year, turning a regional wildlife event into a global conversation about survival, nature, and the unlikely celebrity of well-fed bears.
- Backpack will soon enter hibernation, his championship title fading into irrelevance as his body draws down the reserves that will determine whether he wakes in spring.
Each autumn in Alaska's Katmai National Park, brown bears engage in one of nature's most urgent rituals: the race to accumulate enough fat to survive half a year of sleep. This year, a bear named Backpack — son of a former champion, known for his quiet toughness and considerable mass — was voted winner of the thirteenth Fat Bear Week by a margin of just over five thousand votes. The competition, playful in its framing, points toward something ancient and serious: the thin line between preparation and perishing that every hibernating creature must navigate before winter closes in.
Every autumn, the brown bears of Katmai National Park in Alaska become unlikely celebrities in a competition measured not by speed or strength, but by sheer accumulated mass. This year, a bear named 89 Backpack won the thirteenth annual Fat Bear Week, collecting 103,344 votes to narrowly defeat a female bear known as 910, who earned 98,253 votes in the final round.
The contest is run by the US National Parks Service with deliberate humor — organizers called it a "battle of size, skill, snack acquisition, and strategic loafing" — but the biology underneath is unsparing. From June through mid-October, brown bears gorge on salmon from Brooks River, building fat reserves that must carry them through up to six months of hibernation, during which they neither eat nor drink and lose roughly a third of their body weight. For these animals, the fat they accumulate now is not excess — it is the margin between survival and death.
Backpack's win was not without dispute. His supporters celebrated his considerable bulk with affection, while advocates for 910 — who raised both her own cub and an adopted niece — argued she was "a larger bear all around." Without official weight data, the debate remained unresolved by anything harder than enthusiasm.
Backpack's name traces back to his cubhood habit of riding on the back of his mother, Holly, a former Fat Bear Week champion herself, as she waded through the river. His reputation at Brooks River is one of quiet persistence — holding his own among larger, more dominant males to secure access to the best fishing spots.
The competition has grown far beyond its regional origins. Last year it drew over 1.7 million votes from more than 100 countries. The National Parks Service thanked all sixteen bears who "involuntarily participated." Backpack will soon disappear into hibernation, his championship already behind him, his survival now entirely dependent on the reserves he spent the season earning.
Every autumn, the bears of Katmai National Park in Alaska become unwitting celebrities in a competition that has nothing to do with speed or strength and everything to do with how much weight they can pack on before the long sleep. This year, a bear called 89 Backpack won the thirteenth annual Fat Bear Week by the narrowest of margins, collecting 103,344 votes to edge out a female bear known simply as 910, who garnered 98,253 votes in the final round.
The competition, run by the US National Parks Service, is framed with deliberate levity—organizers described the contest as a "battle of size, skill, snack acquisition, and strategic loafing." But beneath the playful language lies a serious biological reality. From June through mid-October, brown bears gorge themselves on salmon pulled from Brooks River, racing against the calendar. Adult males average around 408 kilograms in midsummer and can add the equivalent of a quarter of their body weight by autumn. The largest males exceed 540 kilograms. Females are smaller but can still reach over 300 kilograms. This accumulation is not vanity—it is survival. During hibernation, which stretches up to six months, bears neither eat nor drink, and they shed roughly a third of their body weight. The fat reserves they build now determine whether they emerge in spring.
Backpack's victory was not without controversy. His supporters celebrated what one voter called his combined "chonk and the badonk," while another simply dubbed him a "big fuzzy boy." But supporters of 910 mounted a spirited defense. One woman argued that 910, a female who raised both her biological cub and an adopted niece, was "a larger bear all around. Backpack just has a bigger booty." On the park's Facebook page, another 910 advocate wrote, "She round, she thick my girl 910 got my vote." The actual weights of the finalists have not yet been released, leaving the debate unresolved by hard numbers.
Backpack carries a name rooted in his cubhood. His mother, Holly, won the same competition in 2019. The name does not, as one supporter clarified, refer to the "light bulb shape" of his body, but rather to his habit as a young bear of climbing onto Holly's back as she waded through the salmon-rich waters. His biography notes a "quiet toughness" that has allowed him to hold his own alongside the largest bears at Brooks River—a significant achievement in a hierarchy where size and strength determine access to the best fishing spots.
The competition has grown substantially since its inception. Last year, over 1.7 million votes were cast from more than 100 countries, transforming a regional wildlife management effort into a global phenomenon. The National Parks Service extended thanks to all sixteen bears who "involuntarily participated" in the event. Backpack, now champion, will soon enter hibernation, his body shutting down for months while he lives off the reserves he has spent the season building. The competition may be lighthearted in tone, but what it measures—the bears' capacity to prepare for survival—is anything but.
Notable Quotes
A battle of size, skill, snack acquisition, and strategic loafing— US National Parks Service description of Fat Bear Week
She round, she thick my girl 910 got my vote— A supporter of Bear 910 on the park's Facebook page
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