Ernst Haeckel was a German biologist, scientist and philosopher. He mapped a genealogical tree connecting all of the species and developed the recapitulation theory. Popularized Darwin.
 

"It is, however, a most astonishing but incontestable fact, that the history of the evolution of man as yet constitutes no part of general education. Indeed, our so-called 'educated classes' are to this day in total ignorance of the most important circumstances and the most remarkable phenomena which Anthropogeny has brought to light."

— Ernst Haeckel