− | Herbivores have large '''masseter''' and '''pterygoid''' muscles for extensive chewing. Herbiverous species have a limited '''digastricus''' muscle. In the horse, the muscle insertion site for the '''masseter''' is large to snap jaw shut. | + | Herbivores have large '''masseter''' and '''pterygoid''' muscles for extensive chewing. Herbivorous species have a limited '''digastricus''' muscle. In the horse, the muscle insertion site for the '''masseter''' is large to snap jaw shut. |