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If your offspring does not survive to reproduce, your genetic lineage disappears, therefore ‘failed’. Others who do not kill their offspring will survive and th
by alexschnapp 3y ago
If your offspring does not survive to reproduce, your genetic lineage disappears, therefore ‘failed’. Others who do not kill their offspring will survive and the species will therefore not exhibit that behavior nor enjoy the benefits of that behavior.
- Terr_ 3y ago> If your offspring does not survive to reproduce First you declared genes had no evolutionary pressure on longevity after children existed... but now you're amending it to grand-children existing? Well, what about great-grandchildren? How many more times must you be forced to move the goalposts before realizing that the logic behind them is simply wrong? You can't just ignore stuff like kin-selection, which we've known about for over a hundred years already.
- alexschnapp 3y agoThis is just assuming that the offspring survives just like the parent and reproduces. If the offspring requires parenting, the parent, once an offspring, also required parenting and so on. This is not moving the goalpost, it’s doing the similar things adapted in some ways for the environment every generation. I assumed you were talking about humans. For salmon, the definition of a successful reproductive cycle is simply reproducing. For humans, it takes longer and requires parenting. But genes don’t get selected away when it’s passed on to the next generation.
- hwbehrens 3y agoThat's precisely the point the parent was trying to make to your GP post, namely that > "There is no more evolutionary pressure on lifespan after you have children" is an inaccurate oversimplification.
- alexschnapp 3y agoThe definition of having children varies by species. For humans, it requires parenting and care, for salmon, just the act of reproduction works.