Cumulative Culture

They may be our cousins, but orangutans and other primates are nowhere near humans in terms of technological [achievement:development] , social organization or culture. As humans, capacity for building off one another, an [integral:interesting] part of our so called cumulative culture that has allowed us to build up so much in so little time. But how do we develop such [advanced:appropriate] methods of learning in the first place? Kevin Leyland of the University of St Andrews spoke with me about his team's quest to pinpoint the social and [cognitive:advanced] process that underlie humans ability to acquire and [transmit:gain] knowledge.