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Do Fish Really Sleep? Their Quietest Secret Revealed

You’re staring at your aquarium. It’s late. Everything is quiet. And there’s your fish, floating calmly, fins moving slowly, eyes wide open. Are they... asleep? Or just zoning out? Fish don’t come ...

Scientists discover that jellyfish sleep like humans and it may explain the origin of sleep

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Do Fish Sleep?

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

This sea animal may settle a long-running debate about what sleep is needed for

While the jellyfish and sea anemone are awake, DNA damage accumulates in their nerve cells and when they doze, that damage is ...