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
Limburg Zoo in 1985. That year the park had 50 000 extra visitors. The zoo had troubles with the government and animal rights organisations: The city of Genk bought the park in 1999. Demolition of what remained of the zoo began in January 2002. Limburg Zoo The Limburg Zoo, also known as Zwartberg Zoo, was a zoo in the Belgian parish of Zwartberg in the municipality of Genk. The zoo was private property of the Wouters family and did not receive any subsidy or sponsorship. The zoo was known for its large number of animals, which resulted from the internal breeding programme