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I mean, they're all animals. Prokaryotes are far less related to animals than e.g. fungi or plants would be.
by Sniffnoy 5y ago
I mean, they're all animals. Prokaryotes are far less related to animals than e.g. fungi or plants would be.
- wombatmobile 5y agoYou would know that eukaryotes evolved from prokaryotes. So, the interesting point of the question is whether sleep is something that occurs at the cellular level or the organism level. See the article linked to in the comment above, about cyanobacteria. > Cyanobacteria maintain their circadian rhythms even when isolated from the naturally occurring daily light-dark cycles of the sun, just as humans do. The researchers found that under conditions of moderate constant light, the cyanobacteria undergo cell division about once per day, and the divisions take place mostly at the midpoint of the 24-hour cycle.
- unparagoned 5y agoSleep occurs at both the cellular and organism level. Sleep is probably like getting a car serviced and cleaned. Sleep isn't just blowing up the tires, or changing the oil or cleaning the screen, it's all of it.
- sateesh 5y agoCan you please be specific when you say sleep occurs at cellular level. Definitely bodily systems (circulatory, respiratory etc.) don't go to sleep, even when we are sleeping.
- periheli0n 5y agoStrictly speaking insects are not animals AFAIK
- Balgair 5y agoInsects are animals: https://en.wikipedia.org/wiki/Grasshopper https://en.wikipedia.org/wiki/Grasshopper Infobox on the right-> Kingdom: Animalia, Phylum: Arthropoda, Class: Insecta.
- danwills 5y agoThere are even microscopic single-celled animals, such as Amoeba: https://en.m.wikipedia.org/wiki/Amoebozoa https://en.m.wikipedia.org/wiki/Amoebozoa
- danwills 5y agoCurrently that Wikipedia page has an inexplicable (hillarious?) image of a bush turkey on it, can't really see the connection.. but didn't try to find out how it got there either.
- martingoodson 5y agoAmoeba are not animals. Animals (metazoa) are multicellular organisms.
- danwills 5y agoYep you're totally right! Apologies.. I had always thought the 'zoa' on the end meant they were animal. TIL about metazoa! thanks!
- periheli0n 5y agoThank you for the correction. My impression rose from the fact that insect experiments need no ethical approval, whereas experiments with vertebrates do.
- wombatmobile 5y agoThat probably tells us more about humans than it does about insects.
- deleted 5y ago[deleted]