1. Department of Ethology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary
2. MTA-ELTE Lendület “Momentum” Companion Animal Research Group, 1117 Budapest, Hungary
3. ELTE NAP Canine Brain Group, 1117 Budapest, Hungary
4. Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, 1210 Vienna, Austria