“Weak attributes that lead to non-reproduction... aren’t reproduced.”
How’d the weak attributes get there to not be reproduced?
Presumably they appeared due to reproduction.
How’d the weak attributes get there to not be reproduced? Presumably they appeared due to reproduction.
Well I can see two ways - the first is self-defined congenital abnormalities, such as birth defects that render weakness per se, and lead to early death.
The second is competitive weakness, that is variable based on life conditions. What was adequate or even strong could have innate weaknesses in other areas which social or environmental stresses expose and exploit once conditions are adequate. Or perhaps the strength of the community simply rises until different sets of genes prove more viable in whatever mating combat is taking place.
And this would be a good thing, a protective thing, because life constantly changes. So this would be a way a species wold be able to protect itself from those changes through adaptation within the species.
But that's a whole different thing from changing into another species.
For example, right now, in the human realm, young liberal women are picking metrosexual teen-males to mate with, and rejecting strong traditional men. So that creates a stress on the culture which shifts the value strategy for mating competition towards those who can accept living with political correctness, moral cowardice, brittle rage, indecisive terror and chronic hypocrisy.
But it also throws new stresses into the mix, such as a cultural shift towards total economic, political, technological, cultural, scientific meltdown, leading to catastrophic failure of the infrastructure, which results in intense competition for food, water and shelter at a much more primitive level.
So when that happens, traditional males will once again become the preferred choice for young fertile women.
But none of those stresses is going to make human beings sprout wings, extra legs or heads, antennae, exoskeletons, or scales.
Except, of course, the Leftists who are already like that.
They were not weak attributes at one time or another. Changing environments, predators, etc. are thought to favor some traits over others at different points in time. It’s popularly called a Red Queen hypothesis. If you don’t trust Wikipedia there’s bound to be a site you do trust in a google search.