Because we have ape-type animal remains (no human DNA), and then "Poof!", we have man. There is no link between the two. It's just the way the Bible describes it. Man was created.
I'm no saint, but the Bible's description of man is more logical.
There must have been some type of serious tinkering going on around here!!! The complexity of it all is no accident. Everything is preprogrammed and deliberate. That's why intelligent design is becoming more and more logical as scientific technology "evolves".
I can buy that (and do, actually), but intelligent design, or divine purpose, doesn't preclude the process being a reality.