Here's why:
* Diet: Horses primarily consume plants, including grasses, hay, and grains. They have a digestive system specifically adapted to break down plant matter.
* Teeth: Their teeth are designed for grinding and chewing tough vegetation.
* Lack of predatory adaptations: Horses lack the sharp teeth, claws, or other features found in carnivores. They also don't have the digestive enzymes necessary to break down meat.