Science
What Octopus Dreams Tell Us About the Evolution of Sleep – WIRED
Understanding how other animals dream could help us figure out why it’s so important to the human brain, and why it may have been preserved throughout history.
Fruit flies, octopuses, birds, and humans dont seem to have much in common. Some live on land, others are aquatic. Some fly, while others are earthbound. Some are vertebrates, others lack backbones. These creatures evolved separately and their common ancestors are far, far back in the evolutionary chain. But they may share one fundamental feature: They dream.
Nearly all creatures sleep, though theres some debate as to whether single-celled organisms like paramecium do. But no one really knows why….
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