Acknowledgements
We are grateful to the Ethiopian Wildlife Conservation Authority for granting us permission to conduct this research. We also want to thank the many staff and wardens (Berhanu Gebre, Maru Biadglegn, Abebaw Azanaw Haile) of the Simien Mountains National Park, our Ethiopian staff (Esheti Jejaw, Ambaye Fanta, Setey Girmay, Yeshi Dessie, Dereje Bewket, Atirsaw Aduga, Tariku W/Aregay, Shifarew Asrat), our research assistants in the field (Clay Wilton, Julie Jarvey, Levi Morris, Tara Regan, Caitlin Hawley, Peter Clark, Evan Sloan, Megan Gomery, Laura Morrissey, Emily Downey, Eddy Wild, Liz Babbitt, Maddie Melton, Anna Cryer).
This work was supported by the National Science Foundation (BCS-2041542, BCS-0715179, BCS-1732231, BCS-1723237, BCS-2010309, BCS-1723228, IOS-1255974, IOS-1854359), the Leakey Foundation (AWD015438), the Leakey Foundation Baldwin Award (AWD012312), the National Geographic Society (NGS-8100–06, NGS-8989–11, NGS-1242, and NGS-50409R-18), the Fulbright Scholars Program, Nacey Maggioncalda Foundation, Sigma Xi, the University of Michigan, Arizona State University, University of Washington, and Stony Brook University.