translation.en: If a grouper chases a fish into a crevice in the coral, it will sometimes go to where it knows a moray eel is sleeping and it will signal to the moray, "Follow me," and the moray will understand that signal.
translation.zh: 如果一只石斑鱼在追赶小鱼的时候 小鱼躲进了珊瑚的裂缝， 他就会去到海鳝睡觉的地方， 对后它会发出信号 给海鳝说：“跟我来。” 海鳝能够理解那个信号。