200
how does the prisoner's dilemma represent Reciprocal Altruism Theory, rather than Kin Selection Theory?
Prisoner's don't have to be related. Kin Selection Theory would predict that prisoners will 'help' their co-prisoner by staying silent in interrogation, depending on their genetic similarity (family ties). However, animals like the remora help the shark and vice-versa, despite no genetic ties. Humans may well have evolved with this 'tendency to help' if help is likely to be coming back to them. (prisoner's dilemma if there are several iterations).