So-called "microevolution" -- the variations within species that cause species to change over time -- is observable and documented scientific fact.  However, no one has ever observed one species change into a completely different species.  Yet molecules-to-man evolution says that rocks turned into people over millions of years.  Some people who believe in the religion of molecules-to-man evolution try to claim that microevolution eventually causes a species to change into a completely different one, but that is 100% conjecture without evidence.

Here's why no one should believe in molecules-to-man evolution.

Here's why Christians don't believe in molecules-to-man evolution.

Here's some less-organized information.