if social brain hypothesis robust then selection
should promote convergent evolution of social
intelligence in animal taxa in same complex
social environment
live in permanent socially complex groups
multi male/female
fission fusion
maternal rank inheritance
overlapping generations
infant rank immediately below mother
young ascending repro value
mother help in interventions and resource
competition
HR repro age earlier
less vulnerable to food flactuations
male rank adjacent to mother,
omega in new clan
remember outcomes of earlier interactions
3rd party recog
support HR in each situation
redirect aggression to opponents kin more often after conflict