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
Dr. Juan A. Rivero Zoo zoo acquired two new giraffes and two desert warthogs to augment the African collection. The animals were brought from Ohio and Louisiana. The recent economic downturn related to the government debt crisis in Puerto Rico has led to issues with zoo maintenance and animal care. Committed to animal welfare, especially those facing extinction, the zoo has several conservations programs for the following species: In an effort to promote conservation, the Dr. Rivero Zoo has started an adoption program in which citizens can "adopt" one of the zoo's animals, and donate to contribute in conservation efforts. Dr. Juan A. Rivero Zoo