Lessons from a Chimp: AI "Scheming" and the Quest for Ape Language. - Christopher Summerfield; Lennart Luettgau; Magda Dubois; Hannah Rose Kirk; Kobi Hackenburg; Catherine Fist; Katarina Slama; Nicola Ding; Rebecca Anselmetti; Andrew Strait; Mario Giulianelli; Cozmin Ududec (CoRR, 2025)