Animals are divided into three groups on the basis of their eating habits:
1. Herbivorous animals: Animals that feed on plants are called herbivorous animals or herbivores. For example, cow, goat and buffalo.
2. Carnivorous animals: Animals that feed on the flesh of other animals are called carnivorous animals or carnivores. For example, lion, tiger and wolf.
3. Omnivorous animals: Animals that feed on both plants and flesh of other animals are called omnivorous animals or omnivores. For example, human beings, pig and cockroach.