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Ernst Heinrich Philipp August Haeckel (German: [ɛʁnst ˈhɛkl̩]; 16 February 1834 – 9 August 1919) [1] was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist.
The 79th lithographic plate from Ernst Haeckel's Kunstformen der Natur (1904) depicts a variety of lizards, or Lacertilia. In terms of evolutionary relationships, these eight lizards demonstrate the diversity of the suborder Lacertilia, which has been replaced by an array of new suborders and infraorders in recent classifications.
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Ernst Haeckel (1834–1919) became famous for his "recapitulation theory", according to which each individual mirrors the evolution of the whole species during his life. Typology and personality [ edit ]
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The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...