Ernst Philipp August (Ernst) Haeckel
German zoologist. MD, Berlin, 1857. Lecturer in comparative anatomy, University of Jena, 1861–2; professor extraordinarius of zoology, 1862–5; professor of zoology and director of the Zoological Institute, 1865–1909. Specialist in marine invertebrates. Leading populariser of evolutionary theory. His Generelle Morphologie der Organismen (1866) linked morphology to the study of the phylogenetic evolution of organisms.