The Logic of Nature:dogs pooooop Horses and rabbits are herbivores, or vegetarians. They have large front incisors to grasp plant matter. Their jaws shift side-to-side to grind the plant matter on their large, flat molars. The long GI tracts of herbivores are designed to ferment these foods into usable nutrition. Omnivores such as humans and Bearded Dragons, are designed to chew & process both meat and plant matter. Dogs, cats, and snakes are carnivores, with sharp interlocking teeth designed to hold onto prey. Snakes and cats are obligate carnivores, meaning they must consume a meat diet to maintain health; whereas dogs are scavenging carnivores, who, in addition to a meat-based diet, can consume other foodstuffs with no problems.