Comparison with 1859 |
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Text in this page (from paragraph 1200, sentence 410, word 1 to paragraph 1200, sentence 410, word 15) is not present in 1859 |
By the time that an animal had reached, after numberless generations, the deepest recesses, disuse will on this view have more or less perfectly obliterated its eyes, and natural selection will often have effected other changes, such as an increase in the length of the antennæ or palpi, as a compensation for blindness. Notwithstanding such modifications, we might expect still to see in the cave-animals of America, affinities to the other inhabitants of that continent, and in those of
Europe, Europe, 1859 1860 1861 | Europe 1866 1869 1872 |
to the inhabitants of the European continent. And this is the case with some of the American cave-animals, as I hear from Professor Dana; and some of the European cave-insects are very closely allied to those of the surrounding country. It would be most
difficult to give any rational explanation of the affinities of the blind cave-animals to the other inhabitants of the two continents on the ordinary view of their independent creation. That several of the inhabitants of the caves of the Old and New Worlds should be closely related, we might expect from the well-known relationship of most of their other productions. |
Text in this page (from paragraph 1200, sentence 910 to paragraph 1200, sentence 920, word 5) is not present in 1859 |
These remarks of
Schiödtes, Schiödtes, 1869 | Schiödte's 1861 | Schiödte's, 1866 1872 |
it should be understood, it should be understood, 1866 1869 1872 |
of course 1861 |
apply not to the same, but to distinct species. By the time that an animal had reached, after numberless generations, the deepest recesses, disuse will on this view have more or less perfectly obliterated its eyes, and natural selection will often have effected other changes, such as an increase in the length of the antennæ or palpi, as a compensation for blindness. Notwithstanding such modifications, we might expect still to see in the cave-animals of America, affinities to the other inhabitants of that continent, and in those of
Europe Europe 1866 1869 1872 | Europe, 1859 1860 1861 |
to the inhabitants of the European continent. And this is the case with some of the American cave-animals, as I hear from Professor Dana; and some of the European cave-insects are very closely allied to those of the surrounding country. It would be
most most 1859 1860 1861 1866 1869 | most 1872 |
difficult to give any rational explanation of the affinities of the blind cave-animals to the other inhabitants of the two continents on the ordinary view of their independent creation. That several of the inhabitants of the caves of the Old and New Worlds should be closely related, we might expect from the well-known relationship of most of their other productions. As a blind species of Bathyscia is found in abundance on shady rocks
far from far from 1866 1869 1872 |
out of the 1861 |
caves, the loss of vision in the cave-species
of this one genus has of this one genus has 1866 1869 1872 |
has 1861 |
probably had no relation to its dark habitation;
and and 1861 1866 1869 | for 1872 |
it is
very very 1861 1866 1869 | very 1872 |
natural that an insect already deprived of vision should readily become adapted to dark caverns. Another blind genus (Anophthalmus) offers
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