Herbivores, carnivores, and omnivores are all terms used to describe the feeding habits of animals. Here's the difference between each of them:

1. Herbivores: Herbivores are animals that primarily eat plants. They have evolved to have specialized teeth and digestive systems that are capable of breaking down tough plant materials like cellulose. Examples of herbivores include cows, rabbits, and deer.
2. Carnivores: Carnivores are animals that primarily eat other animals. They have sharp teeth and powerful jaws that allow them to tear apart their prey. Examples of carnivores include lions, wolves, and snakes.
3. Omnivores: Omnivores are animals that eat both plants and animals. They have a more generalized digestive system that can handle a wider variety of food sources. Examples of omnivores include humans, bears, and pigs.

It's important to note that some animals may fall into more than one category, depending on their diet. For example, some birds are primarily herbivores but may also eat insects or small animals. Additionally, some animals may switch between herbivorous and carnivorous diets depending on the availability of food.