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36 Recent evidence suggests that great apes can use the former location of an entity to 37 communicate about it. In this study we built on these findings to investigate the social 38 cognitive foundations of great apes' communicative abilities. We tested whether great 39 apes (n = 35) would adjust their requests for absent entities to previous interactions 40 they had with their interlocutor. We manipulated the apes' experience with respect to 41 the interlocutor's knowledge about the previousdoi:10.1037/com0000042 pmid:27690504 fatcat:c4oz2dehrzcjjjz5kpd5ri57qa