Here's why:
* Herbivore: Bisons are herbivores, meaning they eat plants.
* Large size: Their large size and strength make them less likely to be hunted by most predators.
* Defensive: While they don't actively hunt, they are known for their defense and can be dangerous when threatened.
* Predators: Bisons are prey for large predators like wolves, bears, and mountain lions.
While a bison might occasionally scavenge for dead animals, they primarily rely on plants for food and are not known to actively hunt other animals.