...absolutely break down." 1 And again, " If it could be proved that any part of the structure of any species had been formed for the exclusive good of another species, it would annihilate my theory." 2 On the other hand, he enumerates a number of facts,—such as the instincts of animals like the bee...

...by numerous successive slight modifications, my theory would absolutely break down."1 And again, " If it could be proved that any part of the structure of any species had been formed for the exclusive good of another species, it would annihilate my theory."2...

...thoughout the struggle the most violent muscular contractions for so young a bird. Darwin states that if it could be proved that any part of the structure...exclusive good of another species, it would annihilate his theory, for such could not have been produced by natural selection.1 And again, "As in the case...

...another species, although they often take advantage of beneficial structures. Darwin also maintained that if it could be proved that any part of the structure...exclusive good of another species, it would annihilate his theory, for such could not have been produced by natural selection. Wallace tells of the varied...

...unexpected obstacles make you mistrust your theory, mistrust your method, mistrust your reasoning power. ' If it could be proved that any part of the structure...of another species, it would annihilate my theory.' » And who knows that it cannot be proved ? After months of study, a clear statement of opposing facts...

...sociobiologist Alexander has a special theoretical interest: Darwin, after all, had noted (1859, p. 201) that "If it could be proved that any part of the structure...annihilate my theory, for such could not have been produced by natural selection." . . . Neither Darwin or any of his successors thought to emphasize the obvious...

...adaptations promote survival of the species possessing them that he staked his entire theory on it. "If it could be proved that any part of the structure...not have been produced through natural selection." The catch here is in the words "if it could be proved." How does one prove that a structure was formed...

...the eyes of man, or for mere variety. This doctrine, if true, would be absolutely fatal to my theory. If it could be proved that any part of the structure...not have been produced through natural selection. It is not that all large genera are now varying much, and are thus increasing in the number of their...

...and if falsified, would falsify their theory. For example, Darwin ([1859] 1964, 201) states that, if "any part of the structure of any one species had...not have been produced through natural selection." If taken at face value, statements such as these certainly make it appear as if theories are made up...

...adder, and in the ovipositor of the ichneumon, by which its eggs are deposited in the living bodies of other insects. If it could be proved that any part...such could not have been produced through natural selection.6 From other discussions in the Origin (and elsewhere), it is clear that when Darwin writes...