Early vocal production and functional flexibility in wild infant chimpanzees
G. Dezecache, K. Zuberbühler, M. Davila-Ross, C. D. Dahl
This study identifies functional flexibility in infant chimpanzee vocalizations using AI, finding grunts are contextually variable while whimpers are not, suggesting vocal flexibility evolved before human and chimpanzee divergence.
bioRxiv · Nov 21, 2019 · PreprintAnimal Behavior & Cognition