The bison is the largest mammal in North America and this bull here is a particularly beautiful representative. He stands confidently on the lush meadow with wide legs and grazes with relish. Then he suddenly jerks his head up. Has he heard something? The bison turns its large head to the side and looks out over the vast plain. Nothing to see. He continues to graze leisurely. The colossus is quite peaceful. But if he has to, he will bravely defend himself and his herd. What you would least expect from him is that he can even run really fast. He can reach speeds of up to 56 km/h! Once it has picked up speed, it races towards its opponent like a huge avalanche. Fortunately, this only happens in an emergency.