“Without exception, every animal species studied to date sleeps or engages in something remarkably like it. This includes insects, such as flies, bees, cockroaches, and scorpions; fish, from small perch to the larger sharks; amphibians, such as frogs; and reptiles, like turtles,  Komodo dragons, and chameleons. All have a bona fide sleep cycle. Ascend the evolutionary ladder further and we find all types of birds and mammals sleep: from shrews to parrots, kangaroos, polar bears, bats,  and, of course, we humans. Sleep is universal.”

VIsit: https://michaeljdawkins.com/2021/07/07/sleep-is-universal-when-we-sleep-is-personal/

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