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Related Experiment Video

Updated: Apr 13, 2026

Obtaining Specimens with Slowed, Accelerated and Reversed Aging in the Honey Bee Model

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Published on: August 29, 2013

Skill ontogeny among Tsimane forager-horticulturalists.

Eric Schniter¹, Michael Gurven², Hillard S Kaplan³

¹Economic Science Institute, Chapman University, One University Drive, Orange, CA, 92866.

American Journal of Physical Anthropology

|April 30, 2015

Summary

Tsimane adults acquire essential skills before reproduction, enhancing them to support offspring. Post-reproductive elders gain expertise in areas like music and storytelling, fulfilling vital roles.

Keywords:

acquisition development expertise life history theory proficiency

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Area of Science:

Human evolutionary biology
Anthropology
Life history theory

Background:

Previous studies on forager skill development often focused narrowly on specific abilities like hunting.
There's a need to examine a broader range of skills and services, including childcare, craft production, and cultural practices, within traditional subsistence societies.

Purpose of the Study:

To investigate age-related skill development in Tsimane forager-horticulturalists.
To assess if these age profiles align with life history theory predictions regarding reproduction and productivity.
To provide a comprehensive study of skill acquisition and expertise across diverse activities.

Main Methods:

Systematic examination of age patterns in skill acquisition, proficiency, and expertise.
Inclusion of a wide array of activities: food production, childcare, craft, music, and storytelling.
Study of a traditional subsistence society to provide a complete skill development analysis.

Main Results:

Essential skills are acquired before first reproduction and further developed to meet offspring needs.
Post-reproductive adults develop advanced conceptual and procedural skills, becoming recognized experts, particularly in music and storytelling.
Adults demonstrate accurate self-awareness of their skill levels, crucial for social learning and pedagogy.

Conclusions:

Skill development in Tsimane adults is shaped by life history, with complementary skills emerging to support offspring and societal roles.
Embodied capital changes and offspring dependency predict skill acquisition and expertise throughout the lifespan.
Findings contribute to understanding evolved human life history and the adaptive significance of diverse skill sets.