Evidence of evolution is just too scanty. And specifically evidence that humans evolved from any other form. Yes there have been many various forms of bipedal creatures that resemble humans but not one shred of hard evidence that there was ever a transition from one form to another except for manufactured evidence by people who were desperately trying to find substantiation to a pre existing theory. Case in point is Lucy, manufactured from a couple fragments that were not even found on the same site but actually miles apart.
Intersting to note is that anthripological evidence of the present species of humans cannot be found that is much older than what Biblical origens would dictate. Now I realize this is arguable at some level and I am just a casual scholar of such things, but as far as I know Kenniwick man is the oldest know human found in our country and if I remember right he was dated back some 6000 years.