They may sleep in a similar way.
A new study suggests that octopus sleep is similar to that of humans.
Researchers in Japan think octopuses are capable of something similar to dreaming, as the sea creatures generate skin patterns similar to those created during their waking hours.
Scientists at the Okinawa Institute of Science and Technology, say the patterns created while sleeping could be a sign that octopuses are re-living and learning from their waking experiences, such as hunting or hiding from a predator.
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