It's called the zoo of death because animals keep dying here

Rama, a rare male Sumatran tiger was recently found dead in Surabaya Zoo. Photo: Reuters

So many animals have perished at Indonesia's biggest zoo that wildlife activists call it the "zoo of death" and are demanding an overhaul of its management.

Activists say many of the more than 2,200 animals at the zoo in the city of Surabaya are crowded into cages and enclosures far too small for them, and they also face a shortage of proper feed.