Good Question: When Goldfish Sleep, Do They Dream of the Deep Blue Sea?

Summary


Question: How do fish sleep? Do they stay still or do they keep swimming? Lucy Kamp, 5, Santa Fe

Answer: It's a common erroneous belief that fish don't sleep. Fish, like nearly every other creature, do sleep. They just don't look like they are asleep. Some scientists say it might be more accurately called "resting" than "sleep."

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Good Question: When Goldfish Sleep, Do They Dream of the Deep Blue Sea?

Fish don't have eyelids, so they can't close their eyes, and some -- like sharks -- ...

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