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在热带美洲，有一种奇特的鱼类，与所有其他鱼类不同的是，这种鱼有四只而不是两只“眼睛”，它能同时看清水面上和水下的物体。凭着这双独一无二的眼睛，四眼鱼能在同一时刻完成两项任务：一边搜寻食物，一边睁大另两只眼睛作为预警，防范捕猎者的偷袭。 乍一看，这种
In tropical America, there is a peculiar species of fish. Unlike all other species of fish, this fish has four “eyes” instead of two. It can see both surface and underwater objects at the same time. With this unique pair of eyes, the four-eye fish can accomplish two tasks at the same time: searching for food while widening the other two eyes as an early warning to prevent the hunters from attacking. At first glance, this kind of