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> there's probably an advantage to remaining quiet and still in the dark, when human eyesight is at its worst and predators roam. That's a bit too anthropocent
by sampo 13y ago
> there's probably an advantage to remaining quiet and still in the dark, when human eyesight is at its worst and predators roam.
That's a bit too anthropocentric view. Also other animals sleep, even nocturnal animals.
- ars 13y agoWorms sleep too - and they don't have brains that need cleaning.
- sampo 13y agoWikipedia suggests that also in nematodes, "sleep is necessary for changes in the neural system". http://en.wikipedia.org/wiki/Sleep_%28non-human%29#Invertebrates http://en.wikipedia.org/wiki/Sleep_%28non-human%29#Invertebr...