Shush! The Creatures are Sleeping

 

Not all animals need the same amount of sleep. Some people get by on five hours a day, while other animals (cats, for instance) can easily sleep upward of ten hours a day. So what is sleep, and why don't animals need the same amount? Tune in to find out.

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Stuff To Blow Your Mind

Deep in the back of your mind, you’ve always had the feeling that there’s something strange about re… 

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