Evolution doesn't make deliberate, strategic choices. Random mutations result in new behaviors/properties that may or may not be beneficial, and selection removes those mutations that prevent reproduction from the gene pool. Not every mutation will be beneficial, but as long as it's not harmful enough to stop reproduction, it can persist.

If there were two groups of octopuses, one with the self-destructive behavior and one without, then there would be pressure from competition. In that situation, your point would have more of an impact. But without that pressure, there's nothing to drive the selection. And the mutation won't occur just because it would be helpful for it to do so - it's random.

At least, that's how I understand it. I'm not a biologist or anything.

[–] SkaveRat@discuss.tchncs.de 7 points 7 months ago (10 children)

yes, that's the point I'm trying to reinforce. There has to be "a reason" that getting stupider after mating is a succesful trait, otherwise it wouldn't be there.

The question that was asked was: what is the reason? So far I've only seen speculation in this thread

[–] Mothra@mander.xyz 1 points 7 months ago

Thank you, so far you're the only one addressing my question. The answer could very well be that it's a spandrel, but just like you said it would be speculation like anything else- nobody here daring to say "nobody in the scientific community has a solid theory, we don't know for sure"

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