I agree with the comments on evolution, and that things change, that is the norm. However, our species impact on the extinctions is far to great. We have evolved to have by far the greatest mental capacity of all species, but we have not been able to evolve to a point where collectively we take action for the impact we have on the world around us. Collectively we are destroying our home, and that is the issue. I love animals but I eat meat, and I am no tree hugger. It is all about balance though.