The Pronghorn copyright 1991 Frank Renfrow. I most likely wrote this in 1971 when I was 17 years old . About the prehistory of North America and mammalian evolution and extinctions. Shows I have been thinking about these matters for a long time and have come to the conclusion that all species are native to the Planet Earth! Piano licks in this and the Quagga typical of my Funk Music days with Excursion back in Dayton, Ohio only that was on the Hohner Pianet, this was an old honky tonk piano.