Ernst Heinrich Haeckel (1834-1919) had an expansive collection of interests: embryology, comparative anatomy, marine biology, philosophy, medicine, and illustrative art. However, Haeckel's career was solidified upon reading "On the Origin of Species by Means of Natural Selection" by Charles Darwin. He became a champion for the theory of evolution, and a professor of zoology at the University of Jena. Despite a position of prestige in the 19th century...