Ah, the misconceptions abound!
If new species are emerging, how come we're worried about others going extinct.
To tell you the truth, I'm not particularly worried about species going extinct. So maybe you should direct that question to someone who is worried about it.
According to you, these new species are better that the last ones, so shouldn't we be attempting to help evolution create the perfect animal.
Whoa! Hold on there, buckaroo.
I never said any species were better than others. Moreoever, I'm pretty sure very few scientists ever said it either. You seem to be confusing the idea of better adapted to survive with a value judgment. The two are not at all the same thing.
Moreoever, your suggestion that we work on a "perfect" animal displays a tremendous ignorance about evolution. There is no "perfect" animal from an evolutionary perspective; there is only better adapted to the environment and less well-adapted.
Just for clarification, humans aren't the perfect animal.
Not sure why you felt that needed clarification, but thanks anyway. Of course, your observation makes me ponder the following point:
If humans are the divine creation of god in his image, why
aren't they the perfect animal?
Those who would sacrifice an essential liberty for a temporary security will lose both, and deserve neither. -- Benjamin Franklin
We see monsters where science shows us windmills. -- Phat