The Fat Bear Week winner is truly colossal

"He's the fattest and largest bear I've ever seen."
By
Mark Kaufman
 on 
The Fat Bear Week winner is truly colossal
Colossal bear 747 fishes in Katmai's Brooks River. Credit: nps

Welcome to Fat Bear Week 2023! Katmai National Park and Preserve’s brown bears spent the summer gorging on 4,500-calorie salmon, and they've transformed into rotund giants, some over 1,000 pounds. The Alaskan park is holding its annual playoff-like competition for the fattest of the fat bears (you can vote online between Oct.4 through Oct. 10). Mashable will be following all the ursine activity.


Welcome to Fat Bear Week 2020! Katmai National Park and Preserve’s brown bears spent the summer gorging on 4,500-calorie salmon, and they've transformed into rotund giants, some over 1,000 pounds. The park is holding its annual playoff-like competition for the fattest of the fat bears (you can vote online between Sept. 30 and Oct. 6). Mashable will be following all the ursine activity.


Bear 747's time has arrived.

For half a decade, 747 has been one of the biggest bears at Katmai National Park and Preserve's salmon-rich Brooks River. But other impressively fat bears have continually beat him in the annual Fat Bear Week contest. And indeed, bears like Holly (bear 435) deserved the prize.

But this year, voters agreed that 747 — a bear who certainly grew into a mundane number assigned by park biologists years ago — wasn't just the biggest. He was also the fattest, and they have crowned him the 2020 Fat Bear Week champion.

"He's the fattest and largest bear I've ever seen," Mike Fitz, a former Katmai park ranger and currently a resident naturalist for explore.org, told Mashable. "I feel a special bit of privilege to witness a bear as big as he."

Mashable Light Speed
Want more out-of-this world tech, space and science stories?
Sign up for Mashable's weekly Light Speed newsletter.
By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up!

In 2018, rangers were equally impressed. "He seems to be more hippopotamus than bear at times," said Andrew Lavalle, a park ranger at Katmai at the time. Lavalle noted 747's belly nearly dragged on the ground.

This year, 747 is even fatter. He, like all of the Brooks River bears, benefited from a record-breaking run of salmon into the park. This means the normally fat bears are fatter than usual. Even mothers with cubs, who must share fish with their helpless offspring, are quite rotund, explained Naomi Boak, the media ranger at Katmai National Park and Preserve.

Mashable Image
Bear 747 in early summer versus the fall. Credit: nps / explore.org
Mashable Image
Massive bear 747 in 2019. Credit: nps

Bear 747 bested bear 32, aka "Chunk," in this year's Fat Bear Week finals. Chunk is one of the biggest bears of the Brooks River, with notably large hindquarters, according to explore.org, the nature livestreamers who run the bear cams. In the coming years, Chunk may be a Fat Bear Week champion, too.

Fat Bear Week, while a lighthearted contest, is really a celebration of brown bears thriving in an untrammeled ecosystem. This is nature achieving its full potential. It's the result of protecting oceans, rivers, and land. In Katmai, the salmon flourish, and so do the bears.

"He's the fattest and largest bear I've ever seen."

Bear 747 is in the prime of his life. He's around 20 years old, is excellent at catching bounties of fish, and as a large dominant bear earns some of the most productive fishing spots in the Brooks River. (Only one other bear, formidable bear 856, is more dominant than 747.)

Bear 747 will likely be back next year, as will bear 32. They'll almost certainly be competitors in remote Katmai again, where just one bear is crowned a Fat Bear Week winner, but all the fat bears are truly champions.

Topics Animals

Mashable Image
Mark Kaufman
Science Editor

Mark is an award-winning journalist and the science editor at Mashable. After working as a ranger with the National Park Service, he started a reporting career after seeing the extraordinary value in educating people about the happenings on Earth, and beyond.

He's descended 2,500 feet into the ocean depths in search of the sixgill shark, ventured into the halls of top R&D laboratories, and interviewed some of the most fascinating scientists in the world.

You can reach Mark at [email protected].


More from Fat Bear Week
The real winner of Fat Bear Week
The real winner of Fat Bear Week

2 behemoths clash in the Fat Bear Week finals
2 behemoths clash in the Fat Bear Week finals

The boss of all the fat bears
The boss of all the fat bears


This fat bear won't win Fat Bear Week. But the bears know he's king.
The dominant bear 856 photographed in Katmai National Park and Preserve's Brooks River in 2022.

Recommended For You

Did you catch this Oscar winner's cameo in 'The White Lotus' Season 3?
Jason Isaacs in "The White Lotus."

How to watch 'Anora': Our favorite film of 2024 is heading to Hulu
Mikey Madison in 'Anora'

'Paddington in Peru' review: The movie we need right now
Paddington is back in "Paddington in Peru."

Scientists just looked inside a truly sci-fi planet
An artist's conception of the gas giant exoplanet WASP-121b.

More in Science
How to watch the 2025 MotoGP Grand Prix of The Americas online for free
Riders compete during the MotoGP Argentina Grand Prix

How to watch the 2025 MotoGP World Championship online for free
Francesco Bagnaia of Italy and Ducati Lenovo Team wins the Sprint race

How to watch Houston vs. Purdue online for free
By Jada Kennzie
Purdue men's basketball player Trey Kaufman-Renn shoots during game against McNeese State.

How to watch Auburn vs. Michigan online for free
By Jada Kennzie
Auburn men's basketball player Johni Broome attempting a shot block during game.

How to watch Tennessee vs. Kentucky online for free
By Jada Kennzie
Kentucky Wildcat basketball player Amari Williams slam dunks during game.

Trending on Mashable
NYT Connections hints today: Clues, answers for March 30, 2025
Connections game on a smartphone

Wordle today: Answer, hints for March 30, 2025
Wordle game on a smartphone

NYT Strands hints, answers for March 30
A game being played on a smartphone.

‘SNL’ roasts Trump admin’s Signal fail in group chat Cold Open
SNL sketch shows five characters in a chaotic group chat, including confused teenage girls and serious men in suits and winter gear, all on their phones

NYT Mini crossword answers, hints for March 30, 2025
Close-up view of crossword puzzle.
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!