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Octopuses have two major alternating sleep states – and can even experience dreams

Publicado em 28 março 2021
Octopuses are known to sleep and change color while doing so. Now, a study published on March 25, 2021 in the journal iScience finds that these color changes are characteristic of two major alternating sleep states: an “active sleep” stage and a “quiet sleep” stage. The researchers say that the results have consequences for the development of sleep and may indicate that it is possible for octopuses to experience something similar to dreams. Researchers used to believe [...]