Overview

• Scientists trained carrion crows to associate numerical symbols and sounds with a corresponding number of caws.
• The study is the first to show non-human species linking vocalizations with an understanding of quantity.
• Crows displayed high accuracy in their responses, with performance exceeding chance levels.
• The findings suggest that counting abilities in crows could be an evolutionary precursor to human numerical cognition.
• Further research is planned to explore how crows use these skills in the wild and the brain mechanisms involved.