It's all so much nonsense. When God had amused himself by conjuring up Galapagos turtles, red-bummed baboons, and magpies, He created Man in His own image.
I saw a documentary once about this Planet that apes actually ruled over. They even had their own Statue of Liberty and everything. Hang on a second...
read through this thread from the other day - 4 or 5 posts down answers your question v nicely.
additionally when you ask a question you are presented with a list of questions siminal that have been asked before... not moaning - but it might be an idea just to scan through them before posting next time
if you phrase it somewhat differently it's more interesting
If an organism develops a mutation that gives it a greater advantage over the rest of its kind will it always out-compete it's un-mutated relatives so that they become extinct? If not what are the critea that would allow them to co-exist?