Franziska Hoerner, Lawrenz A, Damerau K, Oerke A-K, Borragan Santos S, Hard T, et al. Behaviour and social bonds of African elephant calves under different holding systems in European zoos. JZAR [Internet]. 2024 Jul. 31 [cited 2024 Aug. 25];12(3):163-71. Available from: https://jzar.org/jzar/article/view/811