What are animals that consume both plants and other animals referred to as?

Depending on the food they consume, animals are classified into three main groups such as-

1. Carnivores or flesh-eating animals 
2. Herbivores or plant-eating animals 
3. Omnivores or animals eating both plants and flesh

Omnivores are those animals that consume both plants and animals as food. A few examples of omnivores are bears, crows, man, etc.