What do foxes eat?

What do living things eat? Plants make their own food. Where does our food come from? Where our food comes from is called its source. What about other animals? What is the source of their food? All animals eat other living things. Most eat plants but some animals eat other animals for their food. But where did the food come from originally? How energy passes from a plant to an animal and then to a predator is called a food chain.