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Just in case anyone wasn't aware, there is smoking gun evidence for human ancestry from Old World primates as conjectured in the Descent of Man and speculated by modern homology with other animals.
It turns out your HC-II (human chromosome II) is the result of end-to-end concatenation of two old world ape chromosomes. The same genes, in the same order. There is even a vestigial, deactivated centromere (the middle piece of a chromosome that has the "hook" so it can be moved around), right where the Ape centromere is still today.
Depending on your worldview flavor, you may have to make some adjustments to allow for the fact that the genus Homo was produced by natural animal reproduction between proto-Apes about 2.5 million years ago. Subsequently, there was a population explosion and speciation due to the adaptive success of locking knees, opposable thumbs, and tool-using behaviors.
Around ~250k years ago the most intelligent and bloodthirsty of the Homini tribes invented group tactics and completely exterminated and hybridized out of existence their biggest resource competition and closest relatives. This coincides with a period of geologic change called Marine Isotope Stage 6.
