Take the army ants of the Amazon jungle, for example. Each species of army ant is the natural enemy of a particular jungle pest. They therefore play a crucial role in controlling these pests.
以南美洲亞馬遜森林的「軍蟻」為例，由於每種軍蟻都是某種森林害蟲的天敵，是控制害蟲數量的重要角色。