Oh, I actually meant initially that I wasn't saving the elephants. I can see how that was less than clear. Elephants are cool and all, but I wouldn't personally allow an innocent, unwilling human to be sacrificed to save them. It's the principle behind it.
Ok, so the principle is that innocent, unwilling, carbon-based life forms shouldn't be sacrificed to save innocent, unwilling, carbon-based, life forms? Ok.
Now, as I write this, another scenario popped into my mind about killing a human to save a species whose extinction would likely soon result in the death or extinction of humans, like the bees. I don't know what I would do there, but if I did decide to have a human killed to save the bees, it wouldn't be for the sake of the bees but for our own sake.
Ok, so in that particular case "don't know what I would do there" effectively equates to "might decide to kill a shitload of humans, including the one I was supposedly trying to save". Frankly, that doesn't seem all that sensible.