Humanzee?

I've heard of Chimpanzee. But never once "Humanzee" till i turned on the TV today. On discovery channel.

There's this half chimpanzee half human creature called Oliver. He has got 47 chromosomes which is in between of human(46) and chimpanzee(48). Puzzled. Did God made a mistake?? Or the devil added one extra chromosome on it?

Or perhaps, as i've always said,

GOD is CREATIVE!!