The Origin of Species does not address speciation (Talk.Origins)
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The Origin of Species does not deliver on the promise of its title; it does not address speciation.
Source: Menton, David N. 1997. Species, speciation and the Genesis kind.
This is never used as an argument against evolution per say, but it is simply used as part of the historical background. Talk Origins entire response can be summed up by saying that the claim is true but irrelevant, which is correct.