Like gridiron football generally, college football is most popular in the United States and Canada. While no single governing body exists for college football in the United States, most schools, especially those at the highest levels of play, are members of the NCAA. In Canada, collegiate football competition is governed by U Sports for universities. The Canadian Collegiate Athletic Association (for colleges) governs soccer and other sports but not gridiron football. Other countries, such as Mexico, Japan and South Korea, also host college football leagues with modest levels of support.
As the second highest tier of gridiron football competition in the United States, many college football players later play professionally in the NFL or other leagues. The NFL draft each spring sees 224 players selected and offered a contract to play in the league, with the vast majority coming from the NCAA. Other professional leagues, such as the CFL and XFL, additionally hold their own drafts each year which see many college players selected. Players who are not selected can still attempt to land a professional roster spot as an undrafted free agent. Despite these opportunities, only around 1.6% of NCAA college football players end up playing professionally in the NFL. (Full article...)
Handlers, known as "Ralphie Runners," run Ralphie around Folsom Field, the University of Colorado's football field, in a loop before each half of each home game. Ralphie can reach speeds of 25 miles per hour (40 km/h). Female bison are used because they are smaller and less aggressive, as well as for insurance reasons, although Ralphie has knocked over her handlers on more than one occasion. Because of this, whether or not Ralphie runs is at the sole discretion of her handlers, and her run may be canceled if she is unusually nervous or upset.