For the 6th year, Katmai National Park and Preserve is staging Fat Bear Week, a tournament to crown the bear with the most successful weight gain of the year. While unhealthy for humans, a substantial layer of fat is crucial for sustaining bears through their winter hibernation. Meet the contenders from the bears that live in Katmai, and place your votes in each matchup between September 30 and October 6. Last year's winner Holly is in the running, although not expected to win as she's been raising her cub this summer. But she's a fan favorite, so Holly is in the bracket, as well as her daughter. -via Metafilter
See also: Fat Bear Week 2018 and 2019.