Haeckel's comparison of embryos of Pig, Cow, Rabbit and Man. Top row, all embryos show gill slit at O, demonstrating his RECAPITULATION theory: An embryo during development (Ontogeny) diplays whole evolutionary history of the species (Phylogeny). "Ontogeny recapitulates Phylogeny" . From Ernst Haeckel "The Evolution of Man", fifth edition, London, 1910

- Image ID: TXGMF0
Haeckel's comparison of embryos of Pig, Cow, Rabbit and Man. Top row, all embryos show gill slit at O, demonstrating his RECAPITULATION theory: An embryo during development (Ontogeny) diplays whole evolutionary history of the species (Phylogeny). "Ontogeny recapitulates Phylogeny" . From Ernst Haeckel "The Evolution of Man", fifth edition, London, 1910
Photo 12 / Alamy Stock Photo
Image ID: TXGMF0