The Evolutionary Origins of Human Culture
Human culture, recognised as a cornerstone of our species' biological success, enables adaptability across diverse environments. Despite its importance, understanding its evolutionary roots remains a challenge. Culture, broadly defined as socially transmitted information, encompasses innovations that spread through social learning, facilitating behavioural flexibility and niche construction. Unlike genetic evolution, cultural evolution allows phenotypic changes within lifetimes, granting humans a unique adaptive edge.
Central to human culture are behavioural traditions shaped by social transmission. Traditions like greetings reflect cultural diversity but underscore a deeper adaptive function: shaping sociality—positive and negative interactions among group members. Social culture fosters fitness-enhancing behaviours such as cooperation and learning, which are pivotal for cumulative cultural evolution. This process, seemingly unique to humans, refines cultural expressions over time, aligning them with intended purposes.
From an evolutionary perspective, primates, our closest relatives, provide critical insights into the roots of human culture. Research in "cultural primatology" reveals primates as avid social learners, capable of transmitting traditions like potato-washing among macaques. However, this field has largely focused on material traditions, neglecting the socio-adaptive aspects crucial to understanding culture’s evolutionary origins.
The CULT_ORIGINS project proposes a transformative approach, examining social culture across 32 groups of three primate species. It hypothesises that primate sociality reflects cultural influences, evidenced by group-specific behaviors, stable social traits, and patterns of social transmission. Additionally, the project explores how social culture enhances cooperation, social learning, and innovation, potentially leading to cumulative cultural evolution. By integrating experimental and observational data, CULT_ORIGINS aims to uncover primate capacities for social culture and challenge the notion of human cultural uniqueness.
This research aligns cultural primatology with human studies, highlighting the need for a comparative approach to uncover the evolutionary origins of social culture. With primate populations facing extinction, understanding their cultural capacities is urgent. CULT_ORIGINS seeks to redefine our understanding of culture, bridging gaps in primate studies and offering insights into the traits that underpin human success.
