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Getting a good night's sleep is hard for a lot of people, but imagine trying to drift off when you have terrifying hallucinations.More

Octopus
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Philosopher Peter Godfrey-Smith says the octopus is "probably the closest we will come to meeting an intelligent alien.” It has no bones and most of its neurons are in its arms — not its brain. Can we ever fathom octopus consciousness?More

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10:35

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