ExNihilo wrote: ↑16/08/2021 23:13
Za većinu životinjskih vrsta
prirodan je i incest, pa nešto ne vidim da se argument prirode koristi u svrhu destigmatizacije istog. Što li, majka mu stara.
Da, ponekad ne mogu razlikovati ko im je potomak, a ko nije (kod lavova na primjer se desi da otac oplodi kcerku, meduim lavice majke ne daju sinovima da ih oplode), pogotovo kada zive u coporima.
I iz clanka:
One obvious scenario in which animals mate with their relatives is when there’s just no other option. If animals are compelled to pass on their genes, you’d expect they’d prefer to produce offspring with a relative than to not reproduce at all.
But there could also be a more counter-intuitive reason behind some animal inbreeding. As Richard Dawkins set out in The Selfish Gene, animals want to pass on as many of their genes as possible. From this perspective, the more genes an animal passes on to the next generation, the better they do.
Mating with a relative can be a great way to do this. Because so many genes are shared between relatives, a higher proportion of both of their genes will be passed on to the next generation if they do mate – a win for their genetic legacy.
Animals who avoid inbreeding also have to expend energy to do so, including when they learn how to distinguish relatives from unrelated individuals. Saving energy is sometimes crucial for an animal’s survival – and by extension the survival of their genes – so learning to avoid inbreeding may not always be the best strategy for some animals.
Te takode:
We humans tend to regard incest as deeply disturbing. It’s a strong social taboo, and it’s underpinned by sound biological reasoning. Mixing genes with a non-relative is beneficial because it increases genetic diversity, while genetic defects often occur in the offspring of related parents.
We’d expect to see the same attitude extend to animals, who may lack a social distaste for incest but are, in the end, subject to the same biological pressures to produce the fittest offspring – which we assume means breeding with an unrelated mate.
But our recent study has called this assumption into question. We reviewed 40 years of scholarship on animal mate selection, and found that animals don’t tend to differentiate between relatives and non-relatives when choosing a mate.
This may seem surprising or unsettling, but evolutionary theorists have pointed out for decades that inbreeding is not always bad – and that in some cases, for instance where mate choice is limited, it might even be beneficial.
Pa nisam sociopata da se krijem od drugih ljudi i pogleda. 
cak se povremeno i seksaju gledajuci se u lice. Veoma "neprirodno" u prirodnom svijetu.
