Feb, 16, 1834 - Aug. 9, 1919.
Haeckel was a German zoologist and evolutionist who was a strong proponent of Darwinism and proposed new notions of the evolutionary descent of man. He coined many words commonly used by biologists today, such as phylum, phylogeny, and ecology.
He is noted for the book, The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny link
