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Evolutionary biology |
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Evolutionary developmental biology interprets development in the light of evolution and modern genetics. It is called for short 'evo-devo'.
In On the Origin of Species (1859), Charles Darwin proposed evolution through natural selection, a theory central to modern biology. Darwin recognised the importance of embryonic development in the understanding of evolution:[1]
Ernst Haeckel (1866) proposed that "ontogeny recapitulates phylogeny", that is, the development of the embryo of every species (ontogeny) repeats the evolutionary development of that species (phylogeny).[1] Haeckel's concept explained, for example, why humans, and indeed all vertebrates, have gill slits and tails early in embryonic development. His theory has since been largely discredited.