Uploaded October 2020 | Updated September 2026, 12 hours ago

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Bears get fat to survive. After a summer's worth of gorging on salmon, Katmai's bears have reached peak fat in preparation for winter hibernation. Who’s the fattest bear in the land? It’s your time to choose. Meet the contestants in this year’s Fat Bear Week and learn more about their life stories with explore.org’s resident naturalist Mike Fitz and Katmai National Park rangers Naomi Boak and Brooklyn White.