Bison bison (American buffalo, bison)
| Class | Mammalia |
| Order | Cetartiodactyla (Artiodactyls) |
| Family | Bovidae |
| Genus | Bison |
| Species | Bison bison |
| Common | American buffalo, bison |

| Diet | Herbivorous |
| Habitat | Open grassland. No free-ranging populations left in the US. |
| Description | Size of large cow. Large head with short, black horns curving upward. Distinct shoulder hump. Head, neck, shoulders, and forelegs with long, dark shaggy hair; hind part of body with short brown hair. Tail short and tufted. |
| Skull Characteristics | Broad heavy forehead, short horns. Premaxilla separated from nasal by maxilla (cp. to Bos taurus). |
| Notes | Links to more species information:
Smithsonian Animal Diversity Web |