I know from experience that when I neuter my male pets and our farm animals they are far more docile and less aggressive to handle. So how come the owner of the male chimp that recently attacked and badly mauled that lady had not neutered him? Now that I think about it, I’ve watched documentaries on National Geographic that show male elephants in reserves killing rhinos for reaching sexual maturity too soon, and male chimps slaughtering people when they escape from a reserve. So how come they don’t just snip those testosterone oozing nads off and save everyone a lot of trouble?
Are you really asking: how come they don’t neuter wild animals? You do realise that animals that live in wildlife reserves are, well, wild, don’t you? And that they are trying to save them from extinction? By, you know, allowing them to breed their numbers up? And that neutering them might be something of an impediment to that goal?