On the Genesis of SpeciesMivart, St. George Jackson
Religion
On the Genesis of Species
Mivart, St. George Jackson
Evolution (Biology)
Suppose him to possess the
physical strength, energy, and ability of a dominant white race, and let
the food and climate of the island suit his constitution; grant him every
advantage which we can conceive a white to possess over the native; concede
that in the struggle for existence his chance of a long life will be much
superior to that of the native chiefs; yet from all these admissions, there
does not follow the conclusion that, after a limited or unlimited {59}
number of generations, the inhabitants of the island will be white. Our
shipwrecked hero would probably become king; he would kill a great many
blacks in the struggle for existence; he would have a great many wives and
children." ... "In the first generation there will be some dozens of
intelligent young mulattoes, much superior in average intelligence to the
negroes. We might expect the throne for some generations to be occupied by
a more or less yellow king; but can any one believe that the whole island
will gradually acquire a white, or even a yellow, population?"
"Darwin says that in the struggle for life a grain may turn the balance in
favour of a given structure, which will then be preserved. But one of the
weights in the scale of nature is due to the number of a given tribe. Let
there be 7000 A's and 7000 B's, representing two varieties of a given
animal, and let all the B's, in virtue of a slight difference of structure,
have the better chance of life by 1/7000 part. We must allow that there is
a slight probability that the descendants of B will supplant the
descendants of A; but let there be only 7001 A's against 7000 B's at first,
and the chances are once more equal, while if there be 7002 A's to start,
the odds would be laid on the A's. True, they stand a greater chance of
being killed; but then they can better afford to be killed. The grain will
only turn the scales when these are very nicely balanced, and an advantage
in numbers counts for weight, even as an advantage in structure. As the
numbers of the favoured variety diminish, so must its relative advantages
increase, if the chance of its existence is to surpass the chance of its
extinction, until hardly any conceivable advantage would enable the
descendants of a single pair to exterminate the descendants of many
thousands if they and their descendants are supposed to breed freely with
the inferior variety, and so gradually lose their ascendency."
Mr. Darwin himself says of the article quoted: "The justice of these
remarks cannot, I think, be disputed. If, for instance, a bird of some {60}
kind could procure its food more easily by having its beak curved, and if
one were born with its beak strongly curved, and which consequently
flourished, nevertheless there would be a very poor chance of this one
individual perpetuating its kind to the exclusion of the common form." This
admission seems almost to amount to a change of front in the face of the
enemy!
Public-domain text, read in full here on John Shaqi.
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