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Like most fish, Moray Eels don't have eyelids, so they can't close their eyes (as with humans and animals) to go to sleep. However, eels (as with most fish), do enter a 'resting state' and do seem to stop moving while they sleep, but certain fish cannot afford to stop moving, as they must stay in motion to get oxygen by having water constantly moving over their gills. Eels tend to live in nooks between rocks or in coral reefs which provide some degree of protection whilst they are awake or sleeping.

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15y ago

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