(AP) — An Alaska national park’s yearly 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.

Native to North America, grizzly bears (also known as brown bears) live in nearly all areas of Alaska. In fact, the state is home to more than 98% of the world’s brown bear population!

With the internet watching via live Bear Cams, the contestants go beast mode ... but for a bracket of 12 brown bears in southwest Alaska’s remote Katmai National Park and Preserve.