Prosociality in a despotic society by Debottam Bhattacharjee, Eythan Cousin, Lena S. Pflüger, Jorg J.M. Massen

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Carrion Crows and Azure-Winged Magpies Show No Prosocial Tendencies When Tested in a Token Transfer Paradigm by Lisa Horn, Jeroen S. Zewald, Thomas Bugnyar, Jorg J. M. Massen

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Personality as a Predictor of Time-Activity Budget in Lion-Tailed Macaques (<i>Macaca silenus</i>) by Charlotte E. Kluiver, Jolanda A. de Jong, Jorg J. M. Massen, Debottam Bhattacharjee

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Exploring the Cognitive Capacities of Japanese Macaques in a Cooperation Game by Ryan Sigmundson, Mathieu S. Stribos, Roy Hammer, Julia Herzele, Lena S. Pflüger, Jorg J. M. Massen

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No Evidence for Contagious Yawning in Juvenile Ravens (<i>Corvus corax</i>): An Observational Study by Andrew C. Gallup, Anja B. Schild, Markus A. Ühlein, Thomas Bugnyar, Jorg J. M. Massen

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Preliminary evidence that eye appearance in parrots (Psittaciformes) co-varies with latitude and altitude by Elif Duran, Juan Olvido Perea-García, Diede Piepenbrock, Celine Veefkind, Mariska E. Kret, Jorg J. M. Massen

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Behavioral, physiological, and genetic drivers of coping in a non-human primate by Debottam Bhattacharjee, Aníta Rut Guðjónsdóttir, Paula Escriche Chova, Esmee Middelburg, Jana Jäckels, Natasja G. de Groot, Bernard Wallner, Jorg J.M. Massen, Lena S. Pflüger

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Photoregulatory functions drive variation in eye coloration across macaque species by Juan Olvido Perea-García, Jorg J. M. Massen, Julia Ostner, Oliver Schülke, Alba Castellano-Navarro, Eva Gazagne, Juan Manuel José-Domínguez, Víctor Beltrán-Francés, Stefano Kaburu, Nadine Ruppert, Jérôme Micheletta, Shreejata Gupta, Bonaventura Majolo, Laëtitia Maréchal, Lena S. Pflüger, Pia M. Böhm, Marie Bourjade, Elif Duran, Catherine Hobaiter, Antónia Monteiro

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