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Mammals
American bison
A species that survived genocide only to become a symbol no one lets roam free.
The American bison is an endemic North American mammal. Two subspecies are recognised: plains bison and wood bison. It nearly went extinct due to 19th-century commercial hunting and disease, dropping from ~60 million to 541 individuals by 1889, largely as part of the genocide of Native Americans who depended on it. Recovery efforts led to ~31,000 wild bison by March 2019. It is a migratory herbivore inhabiting river valleys, prairies, and plains, feeding primarily on grasses and sedges. Its habitat includes open/semiopen grasslands, sagebrush, semiarid lands, and scrublands.
Endemic to North America—found nowhere else on Earth.
2:42
Form
Two distinct forms: plains bison with a rounded hump, wood bison with a taller, square hump.
3:58
Collapse & Return
Dropped from 60 million to 541 by 1889—and back to 31,000 wild animals by March 2019.
5:35
Movement & Diet
Migratory grazers of grasses and sedges—river valleys, prairies, and plains are their range.
Worth your time?
Yes. See the whole thing.
4.5/ 5
What works
migration
grassland dependence
scale—herds once numbered in the tens of millions
What does not
live in forests or wetlands
eat shrubs, forbs, or browse
stay in one place year-round
See it if
people who track wildlife in open country
Skip it if
people seeking cryptic, solitary, or arboreal species
The written brief1 min read
What the species is and where it came from
The American bison is an endemic North American mammal. Two subspecies are recognised: plains bison and wood bison.
How it works, in terms someone would actually use
Bison move in herds across river valleys, prairies, and plains. They graze on grasses and sedges. Their migrations are directional and altitudinal.
What it gets right
It gets migration right. It gets grassland dependence right. It gets scale right—herds once numbered in the tens of millions.
What it does not
It does not live in forests or wetlands. It does not eat shrubs, forbs, or browse. It does not stay in one place year-round.
What it changed
It changed how North America manages wild megafauna. Its near-eradication was tied to the genocide of Native Americans. Its rebound forced new models for bison–tribal co-management and wildland restoration.
Who it is for, and who it is not
It is for people who track wildlife in open country. It is not for people seeking cryptic, solitary, or arboreal species.
Is it worth your time
Yes—if you want to see a large, migratory, endemic North American herbivore whose recovery from near-extinction reshaped conservation practice.