species species 1869 1872 | inhabitants 1859 1860 1861 1866 |
of any one country, although on the ordinary view supposed to have been
created and specially created and specially 1869 1872 |
specially created and 1859 1860 1861 1866 |
adapted for that country, being beaten and supplanted by the naturalised productions from another land.
Nor Nor 1859 1860 1866 1869 1872 | or 1861 |
ought we to marvel if all the contrivances in nature be not, as far as we can judge, absolutely
perfect, perfect, 1872 | perfect; 1859 1860 1861 1866 1869 |
as in the case even as in the case even 1872 |
and if some 1859 1860 1861 1866 1869 |
of
the the 1872 | them 1859 1860 1861 1866 1869 |
human eye; or if some of them be human eye; or if some of them be 1872 |
be 1859 1860 1861 1866 1869 |
abhorrent to our ideas of fitness. We need not marvel at the sting of the
bee, bee, 1872 | bee 1859 1860 1861 1866 1869 |
when used against an enemy, causing when used against an enemy, causing 1872 |
causing 1859 1860 1861 1866 |
when used against an enemy often causing 1869 |
the
bee's bee's 1859 1861 1866 1872 | bees 1860 1869 |
own death; at drones being produced in such
great great 1869 1872 | vast 1859 1860 1861 1866 |
numbers for one single act,
and being then and being then 1859 1869 1872 |
with the great majority 1860 1861 1866 |
slaughtered by their sterile sisters; at the astonishing waste of pollen by our fir-trees; at the instinctive hatred of the
queen-bee queen-bee 1872 | queen bee 1859 1860 1861 1866 1869 |
for her own fertile daughters; at ichneumonidæ feeding within the
living living 1869 1872 | live 1859 1860 1861 1866 |
bodies of caterpillars;
or or 1872 | and 1859 1860 1861 1866 1869 |
at other such cases. The wonder indeed is, on the theory of natural selection, that more cases of the want of absolute perfection have not been
detected. detected. 1872 | observed. 1859 1860 1861 1866 1869 |
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The complex and little known laws governing
the production of varieties the production of varieties 1872 |
variation 1859 1860 1861 1866 |
acknowledged variations 1869 |
are the same, as far as we can
judge, judge, 1872 | see, 1859 1860 1861 1866 1869 |
with the laws which have governed the production of
distinct species. distinct species. 1872 |
so-called specific forms. 1859 1860 1861 1866 |
so-called specific differences. 1869 |
In both cases physical conditions seem to have produced
some direct and definite effect, but how much we cannot say. some direct and definite effect, but how much we cannot say. 1869 1872 |
but little direct effect; yet when varieties enter any zone, they occasionally assume some of the characters of the species proper to that zone. 1859 1860 1861 1866 |
Thus,
when varieties enter any new station, they occasionally assume some of the characters proper to the species of that station.
With With 1872 | In 1859 1860 1861 1866 1869 |
both varieties and species, use and disuse seem to have produced
a considerable a considerable 1869 1872 | some 1859 1860 1861 1866 |
effect; for it is
impossible impossible 1869 1872 | difficult 1859 1860 1861 1866 |
to resist this
....... 1861 1866 1869 1872 | con- 1859 1860 |
conclusion conclusion 1861 1866 1869 1872 | clusion 1859 1860 |
when we look, for instance, at the logger-headed duck, which has wings incapable of flight, in nearly the same condition as in the domestic duck; or when we look at the burrowing
tucu-tucu, tucu-tucu, 1872 | tucutucu, 1859 1860 1861 1866 1869 |
which is occasionally blind, and then at certain moles, which are habitually blind and have their eyes covered with skin; or when we look at the blind animals inhabiting the dark caves of America and Europe.
With With 1872 | In both 1859 1860 1861 1866 | In 1869 |
varieties and
species, species, 1872 | species 1859 1860 1861 1866 1869 |
correlated correlated 1869 1872 | correlation 1859 1860 1861 1866 |
variation variation 1869 1872 | of growth 1859 1860 1861 1866 |
seems to have played
an an 1869 1872 | a most 1859 1860 1861 1866 |
important part, so that when one part has been modified other parts
have been have been 1869 1872 | are 1859 1860 1861 1866 |
necessarily modified.
With With 1872 | In 1859 1860 1861 1866 1869 |
both varieties and
species, species, 1872 | species 1859 1860 1861 1866 1869 |
reversions to long-lost characters
occasionally occur. occasionally occur. 1872 | occur. 1859 1860 1861 1866 1869 |
How inexplicable on the theory of creation is the
occasional occasional 1859 1860 1869 1872 | variable 1861 1866 |
appearance of stripes on the
shoulders shoulders 1866 1869 1872 | shoulder 1859 1860 1861 |
and legs of the several species of the horse-genus and
of of 1866 1869 1872 | in 1859 1860 1861 |
their
hybrids! How simply is this fact explained if we believe that these species are all descended from a striped progenitor, in the same manner as the several domestic breeds of the pigeon are descended from the blue and barred rock-pigeon! hybrids! How simply is this fact explained if we believe that these species are all descended from a striped progenitor, in the same manner as the several domestic breeds of the pigeon are descended from the blue and barred rock-pigeon! 1872 |
hybrids! 1859 1860 1861 1866 1869 |
↑1 blocks not present in 1872; present in 1859 1860 1861 1866 1869 | How simply is this fact explained if we believe that these species have
descended
from a striped progenitor, in the same manner as the several domestic breeds of pigeon have
descended from the blue and barred rock-pigeon!
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