translation.en: So rather than just being some sunbathing slacker, they're really very industrious fish that dance this wild dance between the surface and the bottom and through temperature.
translation.zh: 所以跟一些喜欢日光浴的懒汉比起来， 它们可辛勤地多，在海水表层和底层之间 在不同温度之间来回地舞蹈着。