Years of neglect are evident in mortality rates at Indonesia 's Surabaya Zoo . Until the government stepped in two years ago , 25 animals were dying each month . An autopsy revealed that the adult male had eaten a staggering amount of plastic ; around 18 kilograms or 40 pounds was found in its abdomen , mostly food wrappers . Conditions have improved but overcrowding , poor sanitation and inbreeding remain problems . Comment:
Years of neglect are evident in mortality rates at Indonesia 's Surabaya Zoo . Until the government stepped in two years ago , 25 animals were dying each month . Conditions have improved but overcrowding , poor sanitation and inbreeding remain problems . Comment: