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The parent comment only mentioned humans being diurnal, not other animals. There's a number of strong evolutionary forces that explain nocturnality: niche diff
by thanksforcoming 10y ago
The parent comment only mentioned humans being diurnal, not other animals.
There's a number of strong evolutionary forces that explain nocturnality: niche differentiation, crypsis, a predation arms-race, water conservation, etc.
https://en.wikipedia.org/wiki/Nocturnality#Survival_adaptations https://en.wikipedia.org/wiki/Nocturnality#Survival_adaptati...
- SamBam 10y agoI'm not sure your point about humans vs other animals. Are you suggesting sleep evolved for a different reason in humans than it did for our ancestors and the millions of other species that sleep?