Fat Bear Week voting begins Tuesday, giving the public a chance to choose their favorite “fat bear” in Alaska’s Katmai National Park and Preserve. The annual event centers on bears that have been observed building up body weight before winter.

The featured bears are typically those that spend the late summer and early fall feeding heavily, particularly on salmon, as they prepare for colder months. Media outlets report that voting opens Tuesday and runs as part of the event’s annual tradition of matchup-style fan participation.

While the outlets focus on the same timing and setting, they vary slightly in emphasis: CBS highlights the start of the chance to root for favorite bears, while NPR describes the broader context of the bears bulking up on salmon before winter and the kickoff of the public vote.