Polaris19 said:
Ecosystem needs all animals, big small, and microscopic. Letting any species go extinct is inexcusable especially if we're the reason their threatened in the first place.
That's not entirely true.... if you believe in Evolution (either that's how life came to be or that even in a God created universe, things change every day) then you can't believe this statement. I do think it's ironic that while most "environmentalist/liberals" that believe in evolution mock "religious/conservative" people for believing in Creationism always seem to forget that evolution DEMANDS species die out, even if it's direct human intervention.
Animal species die out. Do you think our ecosystem would be better with Dinosaurs running around? Humans and a lot of other mammal species would never have developed with the T-Rex and Velociraptors running around.
Humans aren't responsible for ALL animal extinction either... many die just because their time has come, or their habitat is gone. While we should be good stewards of the planet, we can't make keeping one limited population of a subspecies of field mice alive.
Also, (again this includes Evolution and Creationist theories), every animal species that exists today DIDN'T exist in the beginning of time. Most have changed during the evolutionary process OR have gained genetic advantages/disadvantages during thousands of years of development, naturally and thru breeding.
Finally, nature seems to have a way in dealing with loss. Take the Deep Horizon Oil Spill. None of the doomsday predictions of catastrophic sealife death and oil soaked beaches for thousands of miles came true. There was some damage, and human intervention played a part, but the ecosystem itself was able to limit and recover for most of the damage on it's own.