Guciano returned to the zoo again in late August, but saw only two of the orangutans still on display. It is unclear what has happened to the others.
"Indonesian Friends of the Animals and its associate U.K. organization, Nature Alert, are desperately worried for these orangutans and government intervention to stop the cruelty and move them away from this zoo is urgently needed," says a joint press release from the two organizations.
Whyte says the groups have sent a letter of appeal to Bambang Dahono Adji, the director of biodiversity conservation at Indonesia's Ministry of Environment and Forestry, but no action has yet been taken. (The Dodo also requested comment from Adji but did not immediately receive a response.)
Gunung Gea, the founding director of the SCORPION Wildlife Trade Monitoring Programme, told The Dodo he was "very upset to know how Mirah Fantasi[a] handles the orangutans on its site. It seems that Mirah Fantasi management simply exploit orangutans to make money but do not pay attention to the quality of life of orangutans - the species which has 97 percent similarity with human DNA."