Bison are large bovines belonging to the genus Bison within the tribe Bovini. Two extant species exist today, alongside numerous extinct species. Bison are known for their massive size and prominent shoulder humps. They are herbivores, grazing on grasses and other vegetation. Historically, bison played a significant role in the lives of indigenous peoples of North America, and they continue to be an important symbol of the American West.
In 1910, following the near extinction of the American bison, repopulation efforts began through government protection and ranching.
Between 1983 and 1985, visitors to Yellowstone experienced a number of bison-related injuries, leading to the park implementing educational campaigns.
Between 1983 and 1985, visitors to Yellowstone experienced a number of bison-related injuries, leading to the park implementing educational campaigns.
The first official census of bison in Canada took place in 1996, recording 45,235 bison on 745 farms.
In 2003, the USDA bought $10 million of surplus bison meat, helping stabilize the struggling commercial bison industry.
In 2005, restaurants like Ruby Tuesday began featuring bison on their menus, contributing to the meat's growing popularity.
The 2006 Canadian bison census showed a substantial increase, with 195,728 bison recorded across 1,898 farms.
In 2013, Montana passed bison legislation that sparked controversy with Native American tribes due to concerns over tribal rights. The governor vetoed three bills.
As of July 2015, there were approximately 4,900 bison in Yellowstone. Several visitor injuries from bison encounters occurred due to visitors not keeping a safe distance.
In 2015, a genetically pure herd of 350 bison was discovered in the Henry Mountains of Utah. Genetic testing confirmed their purity and also revealed they were free of brucellosis.
A study in 2021 examined bovine relationships based on nuclear DNA analysis.
In 2021, the American Society of Mammalogists reclassified bison, placing them back into the Bos genus.