The Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life |
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Page xvi
But the same disposition to form varieties still existing, a darker and a darker race
would in the course of time occur: and as the darkest would be the best fitted for
the climate, this would at length become the most prevalent, if not the only race, ...
But the same disposition to form varieties still existing, a darker and a darker race
would in the course of time occur: and as the darkest would be the best fitted for
the climate, this would at length become the most prevalent, if not the only race, ...
Page 12
They occur rarely under nature, but are far from rare under culture. As a single
bud out of the many thousands, produced year after year on the same tree under
uniform conditions, has been known suddenly to assume a new character; and
as ...
They occur rarely under nature, but are far from rare under culture. As a single
bud out of the many thousands, produced year after year on the same tree under
uniform conditions, has been known suddenly to assume a new character; and
as ...
Page 28
These several marks do not occur together in any other species of the whole
family. Now, in every one of the domestic breeds, taking thoroughly well-bred
birds, all the above marks, even to the white edging of the outer tailfeathers,
sometimes ...
These several marks do not occur together in any other species of the whole
family. Now, in every one of the domestic breeds, taking thoroughly well-bred
birds, all the above marks, even to the white edging of the outer tailfeathers,
sometimes ...
Page 52
Under domestication monstrosities sometimes occur which resemble normal
structures in widely different animals. Thus pigs have occasionally been born
with a sort of proboscis, and if any wild species of the same genus had naturally ...
Under domestication monstrosities sometimes occur which resemble normal
structures in widely different animals. Thus pigs have occasionally been born
with a sort of proboscis, and if any wild species of the same genus had naturally ...
Page 55
... of certain Brazilian Crustaceans: thus, the male of a Tanais regularly occurs
under two distinct forms; one of these has strong and differently shaped pincers,
and the other has antennae much more abundantly furnished with smelling-hairs.
... of certain Brazilian Crustaceans: thus, the male of a Tanais regularly occurs
under two distinct forms; one of these has strong and differently shaped pincers,
and the other has antennae much more abundantly furnished with smelling-hairs.
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Common terms and phrases
according action adapted admit advantage allied America amount animals appear become believe belonging birds breeds called cause certain characters climate closely colour common considered continuous crossed descendants developed difficulty distinct domestic doubt effects existing extinct extremely facts families favourable fertility flowers follow formation forms genera genus give given greater groups habits hand Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind known land laws less living look males manner means modified namely natural selection naturalists nearly never observed occur organs origin parent perfect period plants points present principle probably produced range ranked reason remarked resemblance respect seeds seems seen shown side similar single slight sometimes species stage sterility structure successive supposed tend theory tion variability variations varieties various vary whole widely young