Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.

因为穴居鱼可能并不需要睡得更少——它们可能需要保持清醒，以便更经常地在食物短缺和食物不常出现的环境中觅食。

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Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.

因为洞穴鱼可能并不需要更少的睡眠——它们需要保持清醒，搜寻更多的食物，毕竟洞穴中食物不仅量少而且难以寻找。

youdao

Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.

因为洞穴鱼可能并不需要更少的睡眠——它们需要保持清醒，搜寻更多的食物，毕竟洞穴中食物不仅量少而且难以寻找。

youdao