Octopus changing colors while sleeping may be indicator it's dreaming, scientists say

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Wednesday, October 2, 2019
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A video of an octopus changing colors while it sleeps is raising a lot of questions about the mysterious sea creatures.

A video of an octopus changing colors while it sleeps is raising a lot of questions about the mysterious sea creatures.

The footage aired in the new PBS documentary titled "Octopus: Making Contact."

In it, a marine biologist suggests the animal's color may correspond with its dreams.

Octopuses often change their skin color to evade predators or to conceal themselves when hunting.

However, the biologist says a color change this rapid is something he's never seen before.