Ok everyone, just another 5 cents ... I know that years ago this was discussed and I also know that this is a very controversial topic but i also believe it is very important! What are everyone thoughs on culling healthy animals to control zoo populations? Years ago I saw in a well-know zoo the culling of a troop of monkeys. All the animals were euthanisiated, from adults to days old babies. While I was already involved in Zoos it did shocked me! When I asked why not use contraceptionals or keeping sexes apart the answer was very simple and it did made all the sense! In wild animals, which all zoo animals are, the ritual of matting and breeding the young are one of the best stimoulous any animal can have (only the mother, parents or the whole group)! And I do believe that anyone here will agree that there is nothing better than providing the animals with that (basic and essencial) experience! Also, contraceptives are not yet well designated for wild-spp and sometime breeding a male/female after some years on contraceptives/not breeding maybe hard. Being said the above, I do agree that sometimes and in certain species birth controll should be used wiselly, namelly by separating sexes and/or contraceptional but this should not be the usual. And what to do with all the surplus? Personally I see no harm in using those to feed carnivores in the zoo or humane euthanasia. And on the plus side, whats more attractive to visitiors than a zoo full of babies growing?