Evolutionary developmental biology

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]

"We can see why characters derived from the embryo should be of equal importance with those derived from the adult, for a natural classification of course includes all ages".[2]

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.

  1. 1.0 1.1 Bowler 2003, pp. 170, 190–191
  2. Darwin, Charles (1859). On the Origin of Species. London: John Murray. pp. 439–430. ISBN 0801413192.

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