I believe conservation is the sustainable use of resources. I place more value on the population as a whole than the individual. I believe zoos already do this with other species. The Blackbuck for example are in herds at zoos with a lower % of males. Are those missing males not already euthanized.
In the wild male cubs have higher death rates than females as they are forced out of prides as they mature, and in a constant battle to either take another males pride or protect their own pride. Zoos are an unnatural environment and due to this the gender balance is upset. What I proposed is a humane solution which is far from the pain and suffering of the natural system. I believe our society has divorced most people from the reality of nature and death, which gives unrealistic expectations.
monty - i'm no animal liberationist but i am a greenie. and yes, i vote green. i hate that a few renegades in the party keep sticking their uneducated nose in issues that only helps to polarise the party from the mainstream public (by reinforcing the unfair image of a greenie being an animal loving tree hugging hippie)
I consider myself a Greeny, but not the political party as they are only green on the outside, red under the skin. I fence off areas for revegetation and plant trees. In my time off I camp and walk in the bush and protect our native species by killing introduced pests. This also reduces my carbon output as I can the provide my own organic free range meat. I am having rabbits for tea tomorrow.