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Curious Kids: how do fish sleep?

  • Written by Culum Brown, Professor, Macquarie University
Curious Kids: how do fish sleep?The Ringtail Unicornfish, which occurs in tropical marine waters of the Indo-Pacific. All fish sleep, even the weird-looking ones.Bernard Spragg/Flickr

How do fish sleep? Do they keep swimming or do they sleep somewhere? – Anna, age 5, Thornleigh, NSW, Australia.


Nearly all animals sleep. Sleep is very important for refreshing the mind and...

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