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
Edinburgh Zoo took place under the #savethehogs tag on Thursday 3 February 2011. The Twitter campaign was started by OneKind, with major support from Captive Animals Protection Society. On Friday 4 February 2011, it was announced that the #savethehogs campaign had been successful and the zoo would attempt to re-home the piglets. The zoo also came under criticism for plans to charge £20 per person for visitors to watch the necropsy of an animal. A OneKind spokesman criticised the idea, largely due to the timing of the event, which was scheduled to take place two months after the zoo announced a £2