68. Objects or structures favouring the animal’s entertainment must be placed in the keeping facility of an animal belonging to one of the following orders:
(1) carnivores (Carnivora);
(2) cetaceans (Cetacea);
(3) primates (Primates);
(4) proboscidians (Proboscidea).
Those objects and structures must in particular stimulate social behaviours, play or food seeking.