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. 2021 Apr 23;7(17):eabd2274. doi: 10.1126/sciadv.abd2274

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Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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Fig. 1 — The current known geographic distributions of the four sifaka species included in this study with sample origins. (Illustrations copyright 2020 Stephen D. Nash/IUCN SSC Primate Specialist Group. Used with permission.)