Even though there are certain animals that are prey to other animals, that doesn’t mean than an animal won’t kill any other animal. If a wild animal is hungry and sees an animal that it thinks it could kill, it probably will. Usually, certain animals that are smaller than a predator will become its prey. However, lions and zebras are probably larger than cheetahs, but they can be a cheetah’s prey because cheetahs can run fast and have very sharp teeth.
If a cheetah or other wild animal sees a smaller animal even if it is a baby, it will most likely make it its prey. Therefore, cheetahs do hunt lion cubs and any other small animal to make it a meal for lunch or dinner.