Bucking bull

They are usually a Brahman crossed with another breed, weighing 1,500 pounds or more, selected for their tendency to "leap, plunge and spin" when a human is on its back.

[1] Circa mid-20th century breeders began selecting bulls for bad temperament, that would buck when ridden.

[5] Good performing bulls attain a celebrity status and can be considered a star athlete in their own right, and a valiant competitor on the field against the human rider.

The percent of top professional riders staying on the bull for a full eight second "out" had dropped from 75% in the early 1990s to 35% circa 2014.

[10] Some notable bucking bulls include Bodacious, Bruiser, Bushwacker, Chicken on a Chain, Dillinger, Little Yellow Jacket and Pacific Bell.