Darwiniana: Essays |
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16 ÆäÀÌÁö
animal anomalies is not satisfied, a turn or two in Seven Dials will convince him
that the breeds of pigeons are quite as extraordinary and unlike one another and
their parent stock, while the Horticultural Society will provide him with any ...
animal anomalies is not satisfied, a turn or two in Seven Dials will convince him
that the breeds of pigeons are quite as extraordinary and unlike one another and
their parent stock, while the Horticultural Society will provide him with any ...
39 ÆäÀÌÁö
Here, then, is a remarkable and well-established instance, not only of a very
distinct race being established per saltum, but of that race breeding ¡°true¡± at once
, and showing no mixed forms, even when crossed with another breed. By taking
...
Here, then, is a remarkable and well-established instance, not only of a very
distinct race being established per saltum, but of that race breeding ¡°true¡± at once
, and showing no mixed forms, even when crossed with another breed. By taking
...
40 ÆäÀÌÁö
And there is every reason to believe that the existence of this breed might have
been indefinitely protracted; but the introduction of the Merino sheep, which were
not only very superior to the Ancons in wool and meat, but quite as quiet and ...
And there is every reason to believe that the existence of this breed might have
been indefinitely protracted; but the introduction of the Merino sheep, which were
not only very superior to the Ancons in wool and meat, but quite as quiet and ...
44 ÆäÀÌÁö
to be obvious; for if, as the result of spontaneous variation and of selective
breeding, the progeny of a common stock may become separated into groups
distinguished from one another by constant, not sexual, morphological characters
, it is ...
to be obvious; for if, as the result of spontaneous variation and of selective
breeding, the progeny of a common stock may become separated into groups
distinguished from one another by constant, not sexual, morphological characters
, it is ...
45 ÆäÀÌÁö
Thus, the spaniel and the greyhound, the dray-horse and the Arab, the pouter
and the tumbler, breed together with perfect freedom, and their mongrels, if
matched with other mongrels of the same kind, are equally fertile. On the other
hand, ...
Thus, the spaniel and the greyhound, the dray-horse and the Arab, the pouter
and the tumbler, breed together with perfect freedom, and their mongrels, if
matched with other mongrels of the same kind, are equally fertile. On the other
hand, ...
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able action adapted admit animals appears authority become believe better body breed called causes changes character common complete consider course creation cross Darwin deposited direct distinct doctrine doubt effect evidence evolution existence experiments expression fact favour force forms further germ give given groups hand horse hypothesis important influence kind knowledge known laws less living matter means mind modification natural natural selection objections observation once operation opinion organic Origin of Species parent particular persons phenomena plants position possible present principles probably produced Professor prove question races reason record relations remains remarkable respect result scientific selective breeding sense similar sort structure suppose term theory thing thought tion true variation varieties vary views whole writer