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The first half of the book explores Ernst Haeckel's biogenetic law (recapitulation)—the discredited idea that embryonic developmental stages replay the evolutionary transitions of adult forms of an organism's past descendants—and how this idea influenced thinking in biology, theology, and psychology.
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 ...
Romanes' 1892 copy of Ernst Haeckel's allegedly fraudulent embryo drawings (This version of the figure is often attributed incorrectly to Haeckel.) [1]. Haeckel's illustrations show vertebrate embryos at different stages of development, which exhibit embryonic resemblance as support for evolution, recapitulation as evidence of the Biogenetic Law, and phenotypic divergence as evidence of von ...
Ernst Haeckel – Evolution's controversial artist. A slide-show essay; Kunstformen der Natur (from biolib.de) Kunstformen der Natur (Digitization from Phaidra) PNG alpha-transparencies of Haeckel's "Kustformen der natur" Proteus – Animated documentary film on Haeckel's life and work; Ernst Haeckel Haus and Museum in Jena; Schmidt, H. (1934).
Haeckel divided human beings into ten races, of which the Caucasian was the highest and the primitives were doomed to extinction. [80] Haeckel was also an advocate of the out of Asia theory by writing that the origin of humanity was to be found in Asia; he believed that Hindustan (South Asia) was the actual location where the first humans had ...
Objections to evolution have been raised since evolutionary ideas came to prominence in the 19th century. When Charles Darwin published his 1859 book On the Origin of Species, his theory of evolution (the idea that species arose through descent with modification from a single common ancestor in a process driven by natural selection) initially met opposition from scientists with different ...
Perrault's French fairy tales, for example, were collected more than a century before the Grimms' and provide a more complex view of womanhood. But as the most popular, and the most riffed-on, the Grimms' are worth analyzing, especially because today's women writers are directly confronting the stifling brand of femininity they proliferated.
For example, he noticed that the yolk sac is found in birds, but not in frogs. According to the recapitulation theory, such structures should invariably be present in frogs because they were assumed to be at a lower level in the evolutionary tree.