Ancient mythology suggests that the 'aliens' sent themselves out and seeded homo erectus with their dna, considerably shortening the millions of years that it would have otherwise taken for homo sapiens to evolve. (Sitchin -- "Earth Chronicles).
That would explain the quantum leap from an animal DNA to man DNA. Also, the sudden change of the spinal column/skull between "cave man" and modern man from that of an ape to something closer to a bear.
I believe in the Bible because of the eternal wisdom found in it. Humans aren't that wise, but as far as the creation details, I guess that's suppose to be a human curiosity.
In the Bible that would be the seed of the fallen ones, as opposed to the Jews, who were the chosen race because they were the creation of Jehovah.
Correct on Zacharia Sitchin!I don't know if he's right but he's right but he has plausible theories as to mankind's origins.