What if everything we think we know about collaboration is based on only 5% of the world's population? Developmental psychologist Heidi Keller challenges Western assumptions about teamwork, parenting, and collective action by drawing on decades of cross-cultural research with families across Africa, Asia, and South America. Subscribe for more episodes exploring how collaboration works across cultures. Heidi Keller, director of Nevet at the Hebrew University in Jerusalem, brings an evolutionary and anthropological lens to a concept most researchers treat as universal. Her longitudinal studies of families across multiple continents reveal that collaboration means fundamentally different things depending on cultural context , and that ignoring this difference has real consequences for policy, development aid, and migrant integration. The core distinction is precise. In Western middle-class contexts, collaboration is dyadic: two individuals jointly define goals and contribute as equals. In rural farming communities across Africa, Asia, and South America, collaboration means contributing to goals defined by the community , not imposed, but mutually understood as serving collective well-being. Neither model is superior, but treating the Western version as the default distorts research, policy, and intervention programs worldwide. Keller traces how these differences emerge in early childhood. Western parenting emphasizes individual agency, verbal negotiation, and autonomous decision-making from infancy. Children in rural Cameroonian Nso communities, by contrast, learn collaboration through observation, participation in household tasks, and responsiveness to the needs of others , without explicit instruction. By age three, these children demonstrate collaborative competence that Western children of the same age typically lack. The conversation challenges the assumption that collaboration requires explicit communication and shared intentionality in the way Western psychology defines it. Keller describes how Nso toddlers seamlessly coordinate household tasks, anticipate others' needs, and contribute to collective goals through what she calls "keen observation and eager participation" , a form of collaboration that Western developmental frameworks fail to recognize because they are looking for verbal negotiation and joint attention. The ethical implications are direct. Keller argues that organizations like UNICEF, WHO, and major foundations export Western middle-class developmental norms as universal standards, intervening in cultural systems worldwide with frameworks that do not apply. The result is wasted resources and deep disrespect toward other cultures. The same dynamic plays out in how Western countries treat migrant families , pathologizing parenting practices that are adaptive in their original context. When asked whether humanity can achieve sustainable global collaboration, Keller is pessimistic: economic interests override collective well-being, and corruption undermines cooperative structures everywhere. Her proposed change is deceptively simple: stop viewing yourself as the center of the world, and develop genuine interest in how others live, believe, and raise their children. Part of the Ernst Strüngmann Forum series on Collaboration, produced with the Convergent Science Network.