The western lowland gorilla is the species commonly found in zoos.
Best to leave many exotics to the wilds and the zoos.
Billingham states that " there is no conscious intention of making some direct political statement about zoos.
In 2000, more than 400 rhesus macaques - found to be carrying herpes B - were required to be shot in UK zoos.
Even in the 'better' zoos, abnormal behavior can be widespread, and include repeated pacing, rocking, vomiting and even self mutilation.