Chiroptera (Bats) Drawing (1904) by Ernst Haeckel Poster

The 67th plate from Ernst Haeckel's ''Kunstformen der Natur'' (1904), depicting organisms classified as Chiroptera.

Ernst Haeckel was a German zoologist, naturalist, philosopher, physician, professor, marine biologist, and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including ecology, phylum, phylogeny, and Protista.