"Octopuses' Dreamlike Sleep: Unveiling Neural Similarities to Humans"

Octopuses exhibit sleep cycles similar to REM sleep in humans, suggesting the presence of this sleep stage in creatures with complex cognition. Disruption in sleep prompts octopuses to enter the active sleep phase more frequently, emphasizing its importance. Changes in their skin patterns during this active sleep phase imply that octopuses may be "dreaming" or rehearsing their waking experiences. The study highlights the remarkable similarities between octopuses and humans in terms of sleeping behavior and provides insights into the origin and function of sleep.