Tram law writes:
How should one respond to the question; "If we came from apes why are there still apes?"
Well, first of all, we are
still apes. Second of all, when people say "we come from apes" they do not mean modern apes, but the common ancestor we share with them. Thirdly, if there are dogs, why are there still wolves? What I mean by that is that just because something is descended from it and different from its ancestors, does not mean that the niche the ancestors filled can now no longer be filled by that ancestor.
Also, "Does DNA evidence show that evolution can't happen?"
With laughter. people who say this don't understand genetics
at all. They are so hopelessly wrong you should question whether or not a conversation with them has any point at all. You could tell them that DNA is actually one of the strongest (if not
the strongest) evidence we have for evolution. But really, all you can do is recommend they learn what genetics is actually all about.