What must predators be able to do?

Answer: Hunt and kill other organisms

Explanation:

A predator is a living organism usually animal, that is capable of hunting, killing and feeding on other organisms. The hunted animal is called a prey.

For example:

Lions, tigers, leopards all hunt for antelopes using their good eyesight to find them, their powerful claws to kill and their jaws to feed on its flesh.

Thus, lions, tigers and leopards are predators while antelopes are preys