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Darwiniana; Essays and Reviews Pertaining to Darwinism by Asa Gray
page 314 of 342 (91%)
exquisite and, as we may, perfect adaptation and utility in some animal; it
is found repeated, still useful but destitute of many of its adaptations,
in some animal of lower grade; in some one lower still it is rudimentary and
useless. It is asked, If the first was so created for its obvious and actual
use, and the second for such use as it has, what was the design of the
third? One more case, in which use after all is well subserved, we cite
from the article already much quoted from:


"It is well known that certain fishes (Pleuronecta) display the singularity
of having both eyes on the same side of their head, one eye being placed a
little higher than the other. This arrangement has its utility; for the
Pleuronecta, swimming on their side quite near the bottom of the sea, have
little occasion for their eyesight except to observe what is going on above
them. But the detail to which we would call notice is, that the original
position of the eyes is symmetrical in these fishes, and that it is only at
a certain point of their development that the anomaly is manifested, one of
the eyes passing to the other side of the head. It is almost inconceivable
that an intelligent being should have selected such an arrangement; and
that, intending the eyes to be used only on one side of the head, he should
have placed them originally on different sides."


Then the waste of being is enormous, far beyond the common apprehension.
Seeds, eggs, and other germs, are designed to be plants and animals, but
not one of a thousand or of a million achieves its destiny. Those that fall
into fitting places and in fitting numbers find beneficent provision, and,
if they were to wake to consciousness, might argue design from the
adaptation of their surroundings to their well-being. But what of the vast
majority that perish? As of the light of the sun, sent forth in all
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