They fish sleep without close eyes. Some fish sleep during the day , and some fish sleep at night. Generally sleep through out the night.

鱼睡觉从来不闭眼的。一些鱼白天睡觉，一些鱼晚上睡觉。一般来说，鱼都是晚上睡眠的。

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They fish sleep without close eyes. Some fish sleep during the day , and some fish sleep at night. Generally sleep through out the night.

鱼睡觉从来不闭眼的。一些鱼白天睡觉，一些鱼晚上睡觉。一般来说，鱼都是晚上睡眠的。

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