December 05, 2025

Why Monkeys Can Only Count To Four

4 minutes

To learn more about this topic, start your googling with these keywords:

Approximate number system: A cognitive system that supports the estimation of the magnitude of a group without relying on language or symbols.

Violation of expectancy looking time measure: A technique used to determine if subjects were surprised by an outcome of an experiment based on the idea that surprising outcomes resulted in longer looking times.

Cross-species comparison: Comparisons across species that differ in cognitive character.

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