Meet This Year's Chonky Champion of Fat Bear Week: Backpack, a Laid-Back 20-Year-Old Male Who's a 'Stoic Presence on the River'

The brown bear, who now weighs between 1,000 and 1,200 pounds after fattening up on salmon, earned his nickname as a cub. When he was little, he enjoyed riding on his mom's back as she swam across a river