ct_bergstrom,
@ct_bergstrom@fediscience.org avatar

Menopause in chimps: An interesting challenge to the grandmother hypothesis, the idea that menopause, previously documented only in humans and a few cetacean specie, is an adaptation to by which older females help raise their daughters' offspring.

https://www.science.org/doi/10.1126/science.add5473

matunos,
@matunos@mastodon.social avatar

@ct_bergstrom I'm just a layman here but it seems like they're not considering the grandmother hypothesis to apply to aiding their male offspring's children?

ct_bergstrom,
@ct_bergstrom@fediscience.org avatar

@matunos I wondered about this as well.

sarae,
@sarae@ecoevo.social avatar

@ct_bergstrom great, another study about how the researcher can't understand why older women don't just die 🙃

klmr,
@klmr@mastodon.social avatar

@ct_bergstrom Not just chimps but probably most mammals: https://www.cell.com/cell/fulltext/S0092-8674(23)01080-2

fifilamoura,
@fifilamoura@eldritch.cafe avatar

@ct_bergstrom Maybe we should question the foundational belief of evolution that life is only about fucking and reproduction? It's always worth reminding ourselves that ideas about evolution have largely been created and promoted by men who think in terms of patriarchal cultures were paternity defines worth and value and is seen as "the natural order." (Much like they couldn't conceive that sex wasn't always about dominance.) Part of this is also thinking evolution is linear and not haphazard and chaotic, that it must have a purpose, be orderly and is leading to a perfected state of some kind.

pieist,
@pieist@qoto.org avatar

@fifilamoura @ct_bergstrom

No serious evolutionary biologist thinks that life is only about fucking and reproduction. Nature is replete with species the majority of whose members do not contribute to the gene pool yet very much contribute to the survival of the genome.

ct_bergstrom,
@ct_bergstrom@fediscience.org avatar

@pieist @fifilamoura

I don't know if this is directed at me or not, but if so, I don't know quite what I did to give that impression.

All I said is that this study challenges the grandmother hypothesis, which, IMO, is a rather narrowly adaptationist view of the world.

I try to convey the enormous nuance of evolutionary theory in my book with @LeeDugatkin but if there are places where you think I've failed I would appreciate knowing that so I can improve the subsequent edition.

fifilamoura,
@fifilamoura@eldritch.cafe avatar

@ct_bergstrom My comment wasn't directed at you at all, it was more of a general thought (sorry if it came across otherwise). And thanks for sharing the study! @pieist @LeeDugatkin

pieist,
@pieist@qoto.org avatar

@ct_bergstrom
No, I definitely wasn't responding to you, but to the intervening comment from someone else about a "foundational belief of evolution".

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