The chill is in the air. You can tell that Fall has officially arrived and winter is not far away. Soon you will be "winterizing" your campers and saying farewell to camping season. But, the party is not over yet. Cozy up to the campfire, get an ice cold beverage and crank up the SLAYER! Campground mosh pits are the new hot trend in Yellowstone National Park.

A decade old video has recently begun trending online, showing a group of 1-ton bison fighting in a Yellowstone campground. Watch as the bison crash through fire pits and picnic tables, like a group of metalheads during a heavy guitar solo.

The National Park Service website has some other great facts about Bison. For example:

1. Bison are the largest mammal in North America. Male bison (called bulls) weigh up to 2,000 pounds and stand 6 feet tall, while females (called cows) weigh up to 1,000 pounds and reach a height of 4-5 feet. Bison calves weigh 30–70 pounds at birth.

2. Since the late 19th century, [the Department of the] Interior has been the primary national conservation steward of the bison. Public lands managed by Interior support 17 bison herds—or approximately 10,000 bison—in 12 states, including Alaska.

3. What’s the difference between bison and buffalo? While bison and buffalo are used interchangeably, in North America the scientific name is bison. Actually, it's Bison bison bison (genus: Bison, species: bison, subspecies: bison), but only saying it once is fine. Historians believe that the term "buffalo" grew from the French word for beef, "boeuf."

4.Yellowstone National Park is the only place in the U.S. where bison have continuously lived since prehistoric times. What makes Yellowstone's bison so special is that they're the pure descendants (free of cattle genes) of early bison that roamed our country's grasslands. As of July 2015, Yellowstone's bison population was estimated at 4,900—making it the largest bison population on public lands.