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Related Experiment Videos

A bottlenose dolphin discriminates visual stimuli differing in numerosity.

Annette Kilian1, Sevgi Yaman, Lorenzo von Fersen

  • 1Ruhr-Universität Bochum, Bochum, Germany. a.kilian@marine-mammal-cognition.de

Learning & Behavior
|July 29, 2003
PubMed
Summary

Bottlenose dolphins can discern quantity, demonstrating abstract numerical cognition. This study shows dolphins can perceive numerosity independently of other visual features.

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