The capuchin monkeys @rzsslivinglinks could use spatiotemporal and property/kind information to individuate objects, like 1-year-old human infants, apes and macaques, suggesting a long evolutionary history of these abilities. More research on this topic will be coming~ 4/
Excited to share our paper (with Verena Kersken, Juan-Carlos Gomez, @AmandaMSeed, and Derek Ball) in Animal Behavior and Cognition https://t.co/M58mAiSUjl. Many thanks to @st_psy @univofstandrews and @rzsslivinglinks and all the editors and reviewers! 1/
A wise monkey should be surprise to find one grape if it saw a date or two grapes were dropped into the box -and they indeed were doing great! They searched more or looked longer when the outcomes were unexpected.
An example video inside/outside the box: 2 grapes -> 1 grape 3/