Exactly. This is what I meant by "assuming the antecedent". A principle of evolution is that if a genetic trait promotes descendent-leaving success it will tend to become more widespread. WE cannot logically assume from this that if a trait has spread it must have improved descendent-leaving success.Iwannaplato wrote: ↑Fri Sep 13, 2024 7:00 amIt was implicit in your argument. Of course, people can make mistakes on such issues, but other people can note assumptions and necessary implications in what you write.This is not the case. All that is required for long survival of a trait is that it did not fully undermine the species or those who carry it. It could be neutral or slightly negative in relation to individuals. Further given that ecosystems change, it's inexact to false that traits are simply positive or negative. Their positiveness or negativeness can shift over time. The value of the traits is not in them, but how they effect the relation between the organism and the environment. There could be benefits, for example, to having older lions procreating, in terms of, for example, what this does to cohesion in prides. This might lift up improve the survival rates of prides and offset any problems caused by some birth defects. IOW you are oversimplying these process to such a degree that it is misinterpretation.I qualified the "nature" hardwired elements that had survived for a long long time has evolutionary advantages, else it would have disappeared.
In addition, the lions who kill the cubs when they take over a pride are probably improving their own descendent-leaving success (the lionesses will go into heat more quickly once they stop nursing, and then bear descendents for the new males). But there is no reason to assume they are supporting the "species".
Continuing with our discussion of lions, some few prides of lions have learned to hunt elephants. Most lions run from elephants. Clearly, those lions that hunt elephants are not "programmed" to do so. They learn to do so. It's a learned, cultural trait. The more we learn about animal behavior, the more we come to recognize that "instinct" and "genetic programming" are less important than we might have thought. IN the long run, though, nature vs. nurture is unresolvable. Without our capacity for language, humans would behave quite differently. Without learning language, the same could be said. Both nature and culture are indispensable.