"Facility design takes into account caregiver-animal safety and ease of maintaining a positive relationship." Standards For Rhinoceros, Hippopotamus and Tapir Sanctuaries. 2013. Global Federation of Animal Sanctuaries
A baby orangutan looks for food in a PVC pipe. Feeding the primates through these tubes is meant to encourage natural foraging behavior.
"Objects that encourage inspection and manipulation and promote species-specific behavior. Examples include boxes, balls, bones, barrels, drums and rawhide." Standards For Felid Sanctuaries. 2013. Global Federation of Animal Sanctuaries
"Enclosures are equipped in accordance with the needs of the elephants with appropriate substrate, vegetation, bedding and other enrichment materials designed to aid and encourage normal behavior patterns and minimize any abnormal behavior." Standards For Elephant Sanctuaries. 2015. Global Federation of Animal Sanctuaries
"The best lion exhibits safely replicate the features of the lion’s natural habitat. This will encourage natural behaviors, which will result in healthier animals and provide an educational and inspirational experience for zoo guests." Lion Care Manual. 2012. Association of Zoos and Aquariums.
"Canids are able to enjoy lives that are as close as possible to that of their wild counterparts as regards stimulation and interest. This is achieved by adopting husbandry and management procedures, including appropriate housing and enclosure design, environmental enrichment programs, positive reinforcement training programs and a balanced diet to meet nutritional requirements." Standards For Canid Sanctuaries. 2013. Global Federation of Animal Sanctuaries