In-On-the-Origin-of-Species-(-1859-)-Charles-Darw -- Multiple sentences match

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In On the Origin of Species ( 1859 ), Charles Darwin wrote " Although I do not know of any thoroughly well-authenticated cases of perfectly fertile hybrid animals, I have some reason to believe that the hybrids from Cervulus vaginalis and Reevesii [...] are perfectly fertile.

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In On the Origin of Species ( 1859 ), Charles Darwin proposed evolution through natural selection, a theory central to modern biology.

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