Surabaya Zoo performed on the animals found plastic and wood inside the animals. The death of Melani the tiger, one of only a few hundred Sumatran tigers left in the world, outraged animal activists when it was discovered that the tiger was suffering from extreme digestive disorders before being rescued from the zoo. On 28 January 2014 Surabaya Zoo authority announced that the zoo has a collection of 3,459 animals from 197 species, but 81 animals are sick, disabled, and old, and 44 of which are in severe conditions. An online petition that calls for the closure of Surabaya Zoo due to
Indianapolis Zoo every two years to a conservationist who has made substantial contributions toward the sustainability of an animal species or group of species. The Indianapolis Zoo participates in the Species Survival Plans (SSPs) and conservation programs of the Association of Zoos & Aquariums (AZA), the national zoo membership organization of the United States. Under the auspices of the Polly H. Hix Institute for Conservation and Research, an initiative that supports the Society’s current and future research and conservation programs, the zoo conducts research projects both in situ and ex situ on selected species. The Indianapolis Zoo also participates in three conservation