Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 109, Issue 36, Pages 14500-14503Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1212855109
Keywords
hominin; bonobo targeted tool use; stone tool wear pattern; food acquisition; bonobo survival strategy
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Funding
- Adams Fellowship Program of the Israel Academy of Sciences and Humanities
- Ancell-Teicher Research Foundation for Genetics and Molecular Biology
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Using direct percussion, language-competent bonobo-chimpanzees Kanzi and Pan-Banisha produced a significantly wider variety of flint tool types than hitherto reported, and used them task-specifically to break wooden logs or to dig underground for food retrieval. For log breaking, small flakes were rotated drill-like or used as scrapers, whereas thick cortical flakes were used as axes or wedges, leaving consistent wear patterns along the glued slits, the weakest areas of the log. For digging underground, a variety of modified stone tools, as well as unmodified flint nodules, were used as shovels. Such tool production and utilization competencies reported here in Pan indicate that present-day Pan exhibits Homo-like technological competencies.
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