Professor at Leiden University

Winner of the CoPAN photo competition

We hereby would like to announce the winner of the CoPAN photo competition….Hugh Jansman! Winning numbers 2 and 3 are Iris Kronenburg and Joke Kok.

We received more than 5000 pictures in total and this made a great contribution to the stimulus material for the bonobo research that will start this winter again in de Apenheul with Master student and research assistant Evy van Berlo. From all the entries, Hugh’s picture was evaluated best. The winning picture shows a typical facial expression that is seen when bonobos are stressed. Also the body language captures this emotion nicely. The emotion is difficult to photograph but is very important in research on emotion perception in apes.

We want to again thank all photographers for their invaluable contribution. Thanks to you, we now have a very nice stimulus set for the upcoming study in de Apenheul. Please don’t hesitate to keep sending us pictures! They may be used next year! Or the year thereafter!



Number 1 by Hugh Jansman. Distress in Primate Park de Apenheul.

HJ__HJ09169_16 juni 2015

Number 2 by Iris Kronenburg. Play in Primate Park de Apenheul.


Number 3 by Joke Kok. Close-up with neutral expression, Zoo in Cologne.


Latest news
Latest blog