I love how most people who believe the bible can trace their belief to the notion that the bible explains their origin. The problem though... and I've never heard a good defense for this... the bible never explains the origin of magic but uses it frequently as proof of divine power. So not only do you have to believe the bible, but you also have to believe in the existence of magic. So even if you might want to believe in an alien race or species that evolved the ability to create humankind... you'd still have to believe that species could do impossible magical feats that defy the laws of physics. This(magic), to me, is even more intellectually ambitious than the God proposition. Because we can't prove or disprove God, but we can disprove magic.