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Scientists and whale watchers have seen whale hanging at the surface not

moving very much for short periods of time (minutes to an hour or so) and

they appear to be napping (but not really asleep). There has been some

research that seems to show that part of a whales brain is always active

even when they are "sleeping". So basically we think that whales either

take short "cat naps" or literally sleep with "one eye open" (and part of

their brain active), but never fall completely asleep for hours like you

and I.

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14y ago

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