Many living creatures tremble or make noise while they sleep, but octopuses actually tremble while they rest.
Yes, octopuses shift between different colors and patterns – to a stunning effect – while they sleep. According to Science Alert, sleeping octopuses do this because the neurons firing at their optical foreheads cause their pigment-containing cells to become active.
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The Nature PBS documentary called "The Octopus: Making Contact", which premiered Wednesday, provides an open look at this beautiful phenomenon.
"If she dreams, this is a dramatic moment," says David Schell, a marine biologist at the University of Alaska Pacific who narrates the video. "Then it gets dark – the octopuses will do it when they leave the bottom. This is camouflage. "
Scientists know that octopuses can not only change their coloration but also adapt the texture of their skin to blend in the rocks or corals. They do this primarily to avoid In addition, octopuses can spray ink and spill through small openings if they have to. ] "It's a very unusual behavior that you see the color come and go in your mantle like that. I want you to just say that I can see all the different color patterns that just flicker one after the other, "Shelley says in the video. "You don't usually see this when the animal is sleeping. It's really fascinating."
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