The first human beings were twins, Andon and Fonta, who founded the human race 993 thousand years ago. Their parents were a different species, called Primates by The Urantia Book, a species decidedly superior to all the primates, the apes and monkeys, we know about. The Primates had perfect thumbs and feet and stood erect, but were not human. Andon and Fonta appeared suddenly, not by any sort of gradual mutation, and were physically superior to and radically different from their parents. Evolution is creativity in time, and this was an eruption of the creativity on tap.