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
Breeding programs at Zoo Basel on June 22, 2010 zoo officials consider a calm hatching time and ideal weather as reasons for this record. Zoo Basel hatched the first flamingo, a Chilean flamingo in a European zoo in 1958 and a year later the first greater flamingo in captivity. While at first Zoo Basel had all six flamingo species, it decided to focus on the greater flamingo in the 1980s. The Zoo Basel holds international studbook for the Indian rhinoceros since 1972 and coordinates since 1990 the European Endangered Species Programme (EEP), which ensures that the captive Indian rhinoceros population stays as genetically healthy as