On November
24, 1859, The Origin
of the Species,
Charles
Darwin's
revolutionary text on humans, animals, and everything in between, was
published. Since many Darwin disciples informally refer to this date
as Evolution Day (and celebrate accordingly), we thought it only
right to pay close attention to the book that changed science
forever.
Theme and Variation
1859: How strange it is that a bird, under the form of
woodpecker, should have been created to prey on insects on the
ground; that upland geese, which never or rarely swim, should have
been created with webbed feet; that a thrush should have been created
to dive and feed on subaquatic insects; and that a petrel should have
been created with habits and structure fitting it for the life of an
auk or grebe! And so on in endless other cases. But on the view of
each species constantly trying to increase in number, with natural
selection always ready to adapt the slowly varying descendants of
each to any unoccupied or ill-occupied place in nature, these facts
cease to be strange, or perhaps might even have been anticipated.
As natural selection acts by competition, it adapts the inhabitants
of each country only in relation to the degree of perfection of their
associates—so that we need feel no surprise at the inhabitants of any
one country, although on the ordinary view supposed to have been
specially created and adapted for that country, being beaten and
supplanted by the naturalized productions from another land. Nor
ought we to marvel if all the contrivances in nature be not, as far
as we can judge, absolutely perfect, and if some of them be abhorrent
to our ideas of fitness. We need not marvel at the sting of the bee
causing the bee’s own death; at drones being produced in such vast
numbers for one single act, with the great majority slaughtered by
their sterile sisters; at the astonishing waste of pollen by our fir
trees; at the instinctive hatred of the queen bee for her own fertile
daughters; at ichneumonidae feeding within the live bodies of
caterpillars; and 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 observed.
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