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" The powerful retractile talons of the falcon- and the cat-tribes have not been produced or increased by the volition of those animals; but among the different varieties which occurred in the earlier and less highly organized forms of these groups, those... "
Contributions to the Theory of Natural Selection: A Series of Essays - Page 31
by Alfred Russel Wallace - 1871 - 384 lehte
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Popular Science Monthly, 60. köide

1902 - 584 lehte
...here developed renders such an hypothesis quite unnecessary, by showing that similar results must be produced by the action of principles constantly at...occurred in the earlier and less highly organized form of these groups, those always survived longest which had the greatest facilities for seizing their...
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The Encyclopaedia Britannica: Ton to Zym

1911 - 1120 lehte
...selection is very clearly pointed out. " The powerful retractile talons of the falcon anJ the cat tribes have not been produced or increased by the volition...earlier and less highly organized forms of these groups, litóse always survived longest which had ike greatest I acilitics for seizing their prey. Neither...
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The Encyclopedia Britannica: A Dictionary of Arts, Sciences ..., 28. köide

1911 - 1140 lehte
...selection is very clearly pointed out. " The powerful retractile talons of the falcon and the cat tribes have not been produced or increased by the volition...earlier and less highly organized forms of these groups, those always survived longest which had the greatest facilities for seizins their prey. Neither did...
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Outlines of evolutionary biology

Arthur Dendy - 1912 - 478 lehte
...here developed renders such an hypothesis quite unnecessary, by shewing that similar results must be produced by the action of principles constantly at...been produced or increased by the volition of those animals;2 but among the different varieties which occurred in the earlier and less highly organized...
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Zoologist: A Monthly Journal of Natural History, 16. köide

1858 - 478 lehte
...here developed renders such an hypothesis quite unnecessary, by showing that similar results must be produced by the action of principles constantly at...The powerful retractile talons of the falcon and the cat tribes have not been produced or increased by the volition of those animals ; but among the different...
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Outlines of Evolutionary Biology

Arthur Dendy - 1924 - 536 lehte
...here developed renders such an hypothesis quite unnecessary, by shewing that similar results must be produced by the action of principles constantly at...produced or increased by the volition of those animals ; a but among the different varieties which occurred in the earlier and less highly organized forms...
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The Shrewsbury Edition of the Works of Samuel Butler: Luck, or cunning?

Samuel Butler - 1924 - 288 lehte
...an hypothesis quite unnecessary. . . . The powerful retractile talons of the falcon and cat tribes have not been produced or increased by the volition of those animals ; . . . neither did the giraffe acquire its long neck by desiring to reach the foliage of the more...
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Evolution: Genesis and Revelations: With Readings from Empedocles to Wilson

C. Leon Harris - 1981 - 360 lehte
...here developed renders such an hypothesis quite unnecessary, by showing that similar results must be produced by the action of principles constantly at...earlier and less highly organized forms of these groups, those always survived longest which had the greatest facilities for seizing their prey. Neither did...
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The Correspondence of Charles Darwin: Volume 7, 1858-1859

Charles Darwin, Frederick Burkhardt - 1985 - 726 lehte
...here developed renders such an hypothesis quite unnecessary, by showing that similar results must be produced by the action of principles constantly at...earlier and less highly organized forms of these groups, those always survived longest which had the greatest facilities for seizing their prey. Neither did...
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Transactions and Proceedings of the Botanical Society of Edinburgh, 6. köide

Botanical Society of Edinburgh - 1860 - 504 lehte
...talons of the falcons and the cat tribe have not been produced or increased by the volition of these animals ; but among the different varieties which occurred in the earlier and less highly organised forms of these groups, those always survived longest which had the greatest facilities for...
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