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. 2020 Sep 24;8:e10025. doi: 10.7717/peerj.10025

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©2020 Fichtel et al.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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Average performance of the three lemur species in all tasks of the PCTB in the scales (A) Space, (B) Quantities, (C) Causality, (D) Social learning, (E) Communication, and (F) Theory of mind. Represented are medians (black bars), interquartile ranges (boxes), and outliers (circles).