The first of the series takes us back to the 13th Century to explore medieval superstitions of ancient "naturalists." Frederick II of Hohenstaufen had a passion for falconry that resulted in his immense illustrated book De Arte Venandi Cum Artibus (On the Art of Hunting With Birds.) Series host is Dr. Donald Johanson, noted paleoanthropologist and director of the Institute of Human Origins in Berkeley, California.