Africa has many ecosystems, but the most commonly known is the Savanna. With few trees, but many animals, this dry, and exotic place works happily. Lions are some of the top predators in this environment, and are crucial to the ecosystem. At first glance they don't do much, but sleep and hunt. Look closer at the animals that they kill. They are hunting the sick and injured, because they are easy to get, and by doing this they clear the diseases out of the herds that they are hunting. In return the Lions get a meal.
