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
San Diego Zoo public. The program runs year round in two sessions, one from May through November and one from January through May. Members of the Zoo Corps are expected to volunteer at least once a month. The program utilizes a series of "Kits", which are set on tables throughout the zoo. The kits contain objects that can be used to explain why an animal is endangered or to shed light on the animal's lifestyle. Some of the kits are: Conservation Kit, Endangered Species Kit, Behavioral Enrichment Kit, and Animal Diet Kit. Local architect Louis John Gill designed the original buildings, cages and