continuous = both species do it
helping, sharing, informing
helping is the only continuous one
sharing: chimps trust less, passive sharing, struggle to divide rewards, don't care for doing a task to benefit other
informing: chimps dont collab/coop, more to get sm1 to do smth for them
reasons:
social-cognitive diffs
evolutionary food domain
social selectivity and norms
reciprocity, reputation, social norms!!