If you believe in the evolution theory, Paul, then you'd have to take it a step further, and claim that humans and monkeys alike descend from mono-cells.
That at some point, these mono-cells stopped dividing and started becoming masculine and feminine and then started mating and reproducing.
That they subsequently developed into fish, kangaroos and elephants ... and monkeys.
And then started talking.
Now if you REALLY believe all this, then so be it!
