So, at some time in history an ape had a genetic advancement in its species progression and became a human. Its dna defect resulted in a new form of animal. It was of one sex or another and couldnt reproduce. At the same time and in the same county another exact same type genetic mutation occured and another same type animal was created which could only reproduce with its counterpart across the river.
They got to gether and viola- Adam and Eve. The rest is history.
I hear you. Not near as easy to believe as the cosmic zombie
another exact same type genetic mutation occured and another same type animal was created which could only reproduce with its counterpart across the river. 