Katmai bear 89 Backpack earned his nickname by riding on his mother, and former Fat Bear Week champion, Holly's back while crossing Brooks River

Bear No. 89, a Fat Bear Week winner, is known as Backpack. He earned this specific nickname by riding on the back of his mother, Holly, who is also a former champion. This behavior occurred while they were crossing the Brooks River located within the Katmai National Park and Preserve. The bear's unique habit of clinging to Holly during the river crossing established his identity and name among observers in the national park area.