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Ernst Haeckel (1834-1919) 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. Haeckel promoted and popularized Charles Darwin's work in Germany and developed the influential but no longer widely held recapitulation theory claiming that an individual organism's biological development, or ontogeny, parallels and summarizes its species' evolutionary development, or phylogeny. |
