Wild Bison Stampede! They stink? 😂 In Yellowstone National Park, the bison herd was meandering slowly down the road when they hit a bottleneck created by the waiting vehicles. Two dominant bulls began to fight at that location. (It is mating season after all.) The brief fight turned the herd around and got them running. Video courtesy of James Holt. #bisonstampede #yellowstonebisonrut #yellowstone #wildbuffalo #yellowstonenationalpark #letbuffaloroam #savetheyellowstonebison #endangeredspecies

TOO CLOSE FOR COMFORT: These tourists were warned by other visitors to seek cover as they tried to film sparring bison at Yellowstone National Park. http://abcn.ws/2CnB3ds | ABC News