Nice discussion of the #Feldblum et al paper on effects on reproduction of #female #alliance, even if they are not related as among #chimpanzees.
Author suggests:
'Human females who don’t have access to kin — for example because they moved to a new city or village — are still able to form strong bonds that can benefit them. Studying these social dynamics in chimpanzees can help us understand how we evolved to be the social, cooperative species we are today.”'
We need to remember tho that among African hunter-gatherers initial #matrilocality (females stay with Mum) is default. And maternal grandmothers would have been pretty vital for evolution of babysitting (wot made us human). But yes women have no trouble with organizing transpatial alliances among nonrelatives!