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...the theory of descent with modification embraces all the members of the same great class or kingdom. I believe that animals have descended from at most...progenitors, and plants from an equal or lesser number." But one need not stop here: "Analogy would lead me one step farther, namely, to the belief that all...

...indicates the non-neo-Darwinian character of his theory. He reiterated his conviction in the Origin that "animals have descended from at most only four...and plants from an equal or lesser number." Analogy, he said, yet led him to think that "probably all the organic beings which have ever lived on this earth...

...modification embraces all the mcmbcrsof the same great class or kingdom. I believe that animals are descended from at most only four or five progenitors, and plants from an equal or lesser number (Darwin, 1899:469). And somewhat later, in defending his theory as not entirely beyond Divine intervention:...

...Origin, in Darwin's presentation of the theory of common descent. He first concluded that all animals had "descended from at most only four or five progenitors, and plants from an equal or lesser number." This led him to remark, "Analogy would lead me one step further, namely, to the belief that all animals...

...in Darwin's presentation of the theory of "common descent." He first concluded that all animals had "descended from at most only four or five progenitors, and plants from an equal or lesser number." This led him to remark, "Analogy would lead me one step further, namely, to the belief that all animals...

...with monkey-man, has modified from its own primordial and distinctive form. Supposing that we concede that "animals have descended from at most only four or five progenitors";* and that even a la rigucur "all the organic beings which have ever lived on this earth have descended from...

...edition, the issue is approached with a caution which verges on indecision and contradiction: the belief that 'animals have descended from at most only four...progenitors, and plants from an equal or lesser number', is swiftly but hesitantly modified to allow the inference 'from analogy' that 'probably all the organic...

...up very wide intervals between existing orders. Organs in a rudimentary condition plainly show dial an early progenitor had the organ in a fully developed...equal or lesser number. Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype....