I am a comparative psychologist specializing in social cognition. Currently I work as an Assistant Professor at the Animal Ecology Group of Utrecht University (NL). My research mainly focuses on the proximate mechanisms underlying animal social relations, with special interest in cooperative and prosocial behaviours. For that I use both observational and experimental approaches. Moreover, to put my studies in an evolutionary perspective, I employ a broad comparative approach, focusing on a variety of primate and bird species.

About me


November 03, 2020

New paper in eLife!!!!

After an immense collaborate effort (8 species, 72 different birds, 6 labs, 15 co-authors) lead by Lisa Horn, we achieved a very interesting comparative overview on corvid prosociality, which suggest a sex-specific role for different social systems in the evolution of prosociality.

December 31, 2019

New paper in Scientific reports

Azure-winged magpies’ decisions to share food are contingent on the presence or absence of food for the recipient.

August 31, 2019

NEW LAB MEMBER - Debottam Bhattacharjee

The lab welcomes Debottam Bhattacharjee, who started a 2 year post-doc as a Marie-Curie fellow working on cooperation in macaques!!!!

May 12, 2020

New paper on how cortisol regulates cooperation among friends in long-tailed macaques

New paper by my PhD student Martina stocker entitled "Cooperation with closely bonded individuals reduces cortisol levels in long-tailed macaques" published in Royal Society Open Science

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Ethology, Volume 126, Issue 2, Special Issue:

Studying the Evolution of Cooperation and Prosociality in Birds

Front Cover 2020-Ethology.jpg