Zhiyuan Ning PhD candidate/guest Name Z. Ning MSc Telephone +31 71 527 5148 E-mail z.ning@biology.leidenuniv.nl . Supervisor(s) Carel ten Cate Professor of Animal Behaviour PhD candidate/guest Science Instituut Biologie Leiden IBL Animal Sciences Work address Sylvius Sylviusweg 72 2333 BE Leiden Contact +31 71 527 5148 z.ning@biology.leidenuniv.nl