The bear known as 747 was crowned the champion of Fat Bear Week. Not only is 747 the largest bear of Katmai National Park, but the big bruin is likely one of the largest brown bears on the planet.
Photo credit: Katmai National Park
Tag Archives: 747
Battle of the Bruins: Championship Round
747 vs 901
This is the first time in the title round for Bear 901. She’s a 6-1/2 yo female, who was first identified in 2018. The big question in Katmai isn’t whether 901 can knock off the wide body 747 for the crown, but whether she will emerge from the den in 2023 with her first litter of cubs.
Fertilized eggs will not implant in her uterus until she has denned up for the winter. Even then, during hibernation, it will be 901’s body that decides if she is healthy enough and chunky enough to become pregnant. Without ample body fat to get 901 through hibernation and nourish a litter of cubs, the pregnancy will not occur.
747 on the other hand, being a large male, only has to worry about getting enough fat reserves to see himself through hibernation. Being one of the largest bears on planet earth, I think 747 has hit his goals. Although, no doubt, he is still putting on the calories.
Images credit: Katmai National Park & Preserve/photographer listed; Bio info credit: Katmai NP&P
Battle of the Bruins: Round 3
The Competition gets serious: Chunk vs The Wide Body
Bear #32 was first identified at Brooks Falls in 2007, when he appeared as a “chunky” 2-1/2 yo bear. Thus, his nickname. Even when Chunk is at his leanest, he is carrying a vast supply of fat reserves. His size allows him to command the prime salmon spots, and he has the scars to show that he isn’t afraid to mix it up to take over those fishing holes. But Chunk is a complicated bruin, and he is also known to patiently wait “his turn” to fish, and is often seen playing with other bears. Both are rare activities for dominant brown bears.
2020 Champ, 747, takes on Chunk in this round’s battle of the titans. Today’s winner might very well go on to the title.
Image credits and biography info go to Katmai National Park
Battle of the Bruins
Round 1: The Youngsters
Bear #164 is a 5yo adult male. First identified in 2019, 164 does not compete for fishing spots, but instead created his own. He fishes the base of Brooks Falls on the edge of the deepest pool. No current bear fishes the spot, and none have in recent memory.
Bear #335 is a subadult female, and the daughter of previous champion Holly. This summer was her first as an independent bear. 335 is the youngest bear in the bracket, having won the Junior Bear Title. As a smaller bear, she also didn’t fight for prime fishing holes, but instead harvested spawned out salmon down river.
Round 1: The Rivals
Bear #747 – Wide Body, is one of my favorite bears at Brooks Falls. 747 is also one of the largest brown bears on the planet, tipping in at roughly 1400 pounds this time of year. When he was first spotted at Brooks Falls in 2004, 747 was unable to compete for fishing spots with larger bears. How times have changed as bears move out of his way these days when he approaches. #747 was the 2020 Fat Bear Champion.
For years, Bear 747 gave way to only one bear: #856. That changed in 2021, when 747 displaced 856 in the large bear hierarchy. Between 2011 and 2020, 856 was the top bruin on the falls. His aggressive disposition and willingness to take on any challenger led to many fights, all of which were victories. This summer, 856 refused to give up his title easily, and frequently challenged 747 for the best fishing spots.
Photos come courtesy of Katmai National Park & Preserve; photographers listed below photos
Voting takes place here:
Lidar on Bears
Prior to Fat Bear Week, researchers at Katmai National Park used Terrestrial Lidar Scanning Technology to determine the “volume” of Katmai’s voluptuous bears. #747 above, had over 27 scans of his belly alone. In the scan above, 747 was standing in shallow water.
747 was the winner of Fat Bear Week, and he topped the Lidar scanning too, coming in at 22.6 cubic feet. Chunk was the second largest bear scanned at 19.78 cubic feet. Walker came in third at 17.7 cubic feet.
Fascinating that the technology is being used on Alaska’s wildlife.
Images courtesy of Katmai National Park
Seven-Four-Seven
The winner of Katmai’s Fat Bear Week, is Bear #747. The bear that shares a number with a wide-body jet airplane, is the champion of 2020.
747 first appeared on the Brooks River scene in 2004. At that time, the young, male bruin could not maintain prime fishing spots against the other bears. That is no longer the case.
747 is now one of the most dominate bears at Brooks Falls, and he is a talented catcher of salmon. He is not the most aggressive of the bears, but 747 does not have to be. Most bears get out of his way just because of his size. In 2019, 747 was estimated to weigh 1400 pounds. He has attained that weight, if not more, in 2020.
In full disclosure: 747 was my personal favorite for this year’s Fat Bear Week. No attempt was made to influence voters.
Fat Bear Tuesday
The Fat Bear Title is on the line:
There will not be a repeat winner this year in Katmai. Last year’s champ, Holly, lost to eventual finalist Chunk.
Voting starts at 8am ADT on Tuesday for the title. “Wide Body” 747 takes on “Chunk”, Bear #32.
The amount of weight these brown bears put on over the course of the summer is really astounding. The bears enter a state of hyperphagia, which suppresses leptin, which is the chemical in the bears’ body that tells the animal that it is full.
Bears often eat dozens of sockeye salmon at a time, although one especially motivated bear was documented eating 40 salmon in one sitting! Each salmon brings in around 4000 calories.
A bear fishing Brooks River in Katmai can easily gain four pounds a day eating salmon, sedge grasses and berries. As salmon numbers tail off in September, the bears will start to move away from the river and dine elsewhere. Although, stragglers will remain around the Brooks River & Brooks Falls through the month of October.
Head over to explore.org to vote:
Bracket and photos courtesy of Katmai National Park
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