Recursive self-embedded vocal motifs in wild orangutans
A. R. Lameira, M. E. Hardus, A. Ravignani, T. Raimondi, M. Gamba
The paper identifies temporally recursive vocal structures in wild orangutan calls, suggesting evolutionary precursors to human language recursion without syntax or semantics.
bioRxiv · Apr 14, 2023Animal Behavior & Cognition