The Current Spider monkeys share “insider knowledge” to find the best food
Jan 29, 2026
Gabriel Ramos Fernandez, a researcher at the National Autonomous University of Mexico and National Geographic Explorer who studies spider monkeys, talks about how these canopy dwellers map and share locations of ripe fruit. He explains their fission–fusion social life and how following others transmits insider knowledge. He also connects their collective strategies to questions about cooperation and information sharing.
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Collective Foraging Builds Group Knowledge
- Spider monkeys solve the hard problem of finding fruit by pooling knowledge across individuals with different range knowledge.
- Their changing subgroups let the group build a more complete, up-to-date map of fruiting trees than any single monkey could have.
Home Ranges Act Like Puzzle Pieces
- Individuals explore distinct home ranges that act like puzzle pieces of the overall territory.
- By following others who know different areas, monkeys propagate unique location information across the group.
Simple Rules Produce Group Intelligence
- Collective intelligence can emerge without complex signals or semantics in individuals.
- Simple behavioral rules like following successful foragers create sophisticated group-level solutions.