This shark has found a school of rainbow runners.

鲨鱼发现了一群香蕉鱼。

Swarming in tight packs, prey fish use strength in numbers as a defense against the rainbow runners hunting them.

被捕食的鱼紧紧地聚集在一起，用数量上的力量来防御彩虹鱼的捕猎。