It’s currently Fat Bear Week 2025! On Explore.org, you can vote for your favorite fat bear that’s preparing for hibernation.

An Alaska national park’s annual celebration of the beefy, brown and bristly is getting underway as some of the chunkiest bears on the planet fatten up for their long winter slumber.

But Fat Bear Week is over and a winner has been named: 435 Holly, you glorious creature, the crown is yours. But Fat Bear Week is over and a winner has been named: 435 Holly, you glorious creature, the crown is yours. Fat Bear Week is an annual competition, held by the Alaskan park, to crown the fattest bear of the state's Brook River. As a friendly reminder, the park said: "Fat bears only exist because of clean water and healthy ecosystems." As the sea ice melts and polar bears find themselves on land more often, they begin to compete with brown bears for food.