Numion
First Post
Rackhir said:Don't nearly all creatures with a brain have some form of sleep? It could be something that got incorporated at a very early stage in the development of "thinking" creatures and has been carried forward. Like the qwerty layout has been from typewriters.
Yes they do. But some species require less and some more; there's an inverse size correlation, IIRC, but it's not set in stone. So why have some species evolved to require certain amount on average, and others a different amount? Why are there dreams? Some amount is surely just an upkeep cost for having a brain, but why is sleep in different species the way it is?