BISON VIDEO: Officials at Yellowstone are saying it is bison mating season and the male bison are very aggressive right now. Remember to keep a distance of 25 yards from all bison and elk and 100 yards from other wildlife. Thanks to Yellowstone National Park for this video. Send us your photos and videos: nbcmontana.com/chimein | NBC Montana

INCOMING... This is one of the bulls that was fighting in yesterday's video...I honestly thought i was next... Yellowstone National Park #Bison #yellowstonenationalpark #yellowstone #wildlife | T. Lyn Neufeld Photography

Bison🦬 The North American Largest Land Animals #bison #buffalo #wildlife #wildanimals #animals | All About Animals

American Bison 🦬 North America's Largest Land Animals | All About Animals The American Bison, North America’s largest land animal, is a powerful and iconic species. Standing 6 feet tall and weighing over 2,000 pounds, they have a muscular hump for plowing through snow and can sprint up to 35 mph. Living in herds, bison are protective of their young and can charge when threatened. They are also strong swimmers. Once nearly extinct, conservation efforts have helped restore their populations, maki

Meet the largest land mammal in North America - the bison - which can weigh over a ton, runs at speeds up to 40mph, and has horns that grow up to two feet long! Learn more about these animals and their habitat through our yearlong exploration of the power of parks with the National Park Foundation. | National Geographic Animals