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by shepherdjerred 566 days ago
I don't think this is necessarily true. Is there some really important reason many animals have brains in their head (versus elsewhere in their body), or is it that many species happen to be derived from some ancestor who had that trait.

Another way to ask this would be how much of a benefit would be not sleeping? It's difficult to preserve food, but I guess there is no limit on how much energy you can expend pursuing a mate.
1 comments
lukas099 565 days ago
> Is there some really important reason many animals have brains in their head

I'm guessing proximity to sensory organs.

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shepherdjerred 565 days ago
Maybe; my point though is that there are a lot of these common traits. I don't think these traits (e.g. need for sleep) being shared is necessarily because it's globally optimal.
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