Multiple choice general knowledge What did most dinosaurs snack on? Plants - most dinos were herbivores. Other dinosaurs - dinos mainly ate each other. That's why there aren't any left. Everything they could sink their teeth into - most were omnivores. Animals - dinosaurs were mostly carnivores Reveal answer Fill a bubble to check yourself A Correct answer Explanation Most dinosaur species were herbivores, not carnivores. They fed on plants like ferns, cycads, conifers, and other vegetation available during the Mesozoic Era. Only a minority like T-Rex and velociraptors were meat-eaters.