English naturalist, geologist and biologist Charles Darwin was born #OTD in 1809. Darwin's book introduced his scientific theory that this branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. via @wikipedia
Books by Charles Darwin at PG:
https://www.gutenberg.org/ebooks/author/485
"There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved."
On the Origin of Species (1859), chapter XIV: "Recapitulation and Conclusion", page 489-90
~Charles Darwin (12 February 1809 – 19 April 1882)
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Project Gutenberg
Rolf Steinort (314.8 ppm)