New York: An octopus in an aquarium surprisingly, in deep sleep, suddenly began to fight as if attacked by an enemy. Scientists have concluded that octopuses also have nightmares.
Eric Ramos, a neuroscientist at Rockefeller University in New York, walked into his lab one morning to find an octopus in his aquarium. They found that its water was cloudy and full of ink, which surprised Ramos.
The reason for the surprise was that when the octopus emits ink, it is a defense mechanism that it uses to avoid predators, but there were no predators in the octopus’s aquarium and it was in a deep sleep.
To find out the answer, Ramos checked the video recorded throughout the night. It can be seen in the video that at first the octopus was sleeping peacefully. But suddenly, without any provocation, he started exhibiting agitated behavior, changed skin color, started jerking here and there, increased body size and secreted ink. Threatened by hunters. And adopting this attitude while sleeping shows that the octopus was being attacked in the dream.
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