Acknowledgements

 

The authors would like to thank all the institutions and people that somehow contributed to make this project possible:

 

To the funding institutions/grants: European Commission Leonardo da Vinci grant, Center for Systems Neuroscience Hannover, Forschungszentrum Jülich, Gesellschaft der Freunde der TiHo, University of Veterinary Medicine Hannover;

 

To the institutions where the data collection took place: Apenheul Primate Park (The Netherlands), Leipzig Zoological Garden (Germany), Sepilok Rehabilitation Centre (Malaysia), Tierpark Carl Hagenbeck (Germany) and Zoo Wilhelma (Germany);

 

To the people who assisted in collecting part of the audio-visual material: C. Schopf, E. Ey, M. Wessels, S. Johnson;

 

To the people that sent additional photographs: C. Rodrigues, F. Lasmana, N. Baptista, R. Sharma;

 

To collaborators that were involved on the reliability assessment: M. Lembeck and P. Kuchenbuch;

 

To the institutions that established a mobility partnership acting as host/sending organizations: Faculty of Sciences of the University of Lisbon and University of Portsmouth.

 

 

Website designed by Kate Peirce, University of Portsmouth, UK.

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