Alaska Fat Bear Week

After a summer spent packing away sockeye salmon, Alaska’s heftiest brown bears are ready to throw their weight around. Online voting began Tuesday for Fat Bear Week, the annual contest that pits the rotund residents of Katmai National Park and Preserve against each other for the title of most oversized ursine. Last year’s winner, Chunk — known officially as Bear 32 — is hungry for a repeat. The event this year features 16 bears facing off in a single-elimination, bracket-style tournament. All voting is done online at www.fatbearweek.org, with the winner declared Sept. 29.