Re:well i think (Score 2, Insightful)

And maybe with the next small step they cure Parkinson's disease. Maybe it's my secular mind, but i find killing and disecting millions of mice far worse than "upsetting god" by growing an ear on a mouse or putting in some human cells.

If the mice are happy and not in constant pain or anything, i don't really see what's wrong with it. Evolution creates new species all the time.