Science of Dreaming
The Infinite Monkey Cage
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Would Any Animals Have Deep Sleep?
Sleep seems to be a property of every living organism. Even amiba exhibit something that we could consider sleep. All warm blooded animals have rem and non rem sleep, and cold blooded animals don't necessarily have rems. Would any animals have deep sleep, apart from ones the hybernate? Because wouldn't it be like a survival, survival thing, if they just had loads of deep sleep? They could just be killed really easily.
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