mutualism
cooperation to obtain an end which one individual could not achieve alone that benefits both actors
examples of forced cooperation
selfish heard
colonial nesting
synchronised breeding
co-operative hunting, breeding and courtship
5 reasons for co-operation
mutualism
kin selection
reciprocity
forced cooperation
humans are weird
reciprocity
where the payback from your actions is not assured but depends on the cooperation of another
what conditions are needed for good reciprocity
does cooperation go up or down with intelligence?
cooperation is high in very intelligent and very unintelligent organisms but low in mid-range intelligent organisms