Moements with Ernst Haeckel  (1812-1888), and Kunstformen der Natur )
Art Forms of Nature). Published in 1904.

Ernst Haeckel was a German biologist, naturalist, philosopher, physician, professor, scientist and artist.  He mapped a genealogical tree relating all life forms, discovered and named thousands of new species and also coined such terms in biology as anthropogeny, ecology, phylum, and stem cell.

Haekel studied medicine and became a physician in 1857.  But when he read Charles Darwin’s Origin of Species, he abandoned medicine to pursue a career in zoology.  Haeckel focused his work on invertebrates such as sponges, annelids, and radiolarians. 

His prolific writing career saw him publish 40 books including The History of Creation, Systematic Phylogeny and The Riddle of the Universe, Last Words on Evolution and The Last Link.

He wrote and illustrated his most famous work Kunstformen der Natur (Art Forms of Nature) over a 5 year period from 1898 to 1904.  The book included 100 lithographic plates of a variety of life forms including arachnids, anemones, jellyfish, turtles and many other organisms.