On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeThis is the 'second edition' of Darwin's Origin of Species. |
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Page 35
Some highly competent anthorities are convinced that the setter is directly
derived from the spaniel, and has probably been slowly altered from it. It is known
that the English pointer has been greatly changed within the last century, and in
this ...
Some highly competent anthorities are convinced that the setter is directly
derived from the spaniel, and has probably been slowly altered from it. It is known
that the English pointer has been greatly changed within the last century, and in
this ...
Page 41
... of life, so as to breed freely in that country. When the individuals of any species
are scanty, all the individuals, whatever their quality may be, will generally be
allowed to breed, and this will effectually prevent selection. But probably the ...
... of life, so as to breed freely in that country. When the individuals of any species
are scanty, all the individuals, whatever their quality may be, will generally be
allowed to breed, and this will effectually prevent selection. But probably the ...
Page 70
... many could exist together, and thus save the species from utter destruction. I
should add that the good effects of frequent intercrossing, and the ill effects of
close interbreeding, probably come into play. 70 CHECKS TO INCREASE. CHAP
. III.
... many could exist together, and thus save the species from utter destruction. I
should add that the good effects of frequent intercrossing, and the ill effects of
close interbreeding, probably come into play. 70 CHECKS TO INCREASE. CHAP
. III.
Page 71
the ill effects of close interbreeding, probably come into play in some of these
cases; but on this intricate subject I will not here enlarge. Many cases are on
record showing how complex and unexpected are the checks and relations
between ...
the ill effects of close interbreeding, probably come into play in some of these
cases; but on this intricate subject I will not here enlarge. Many cases are on
record showing how complex and unexpected are the checks and relations
between ...
Page 72
The increase of these flies, numerous as they are, must be habitually checked by
some means, probably by birds. Hence, if certain insectivorous birds (whose
numbers are probably regulated by hawks or beasts of prey) were to increase in
...
The increase of these flies, numerous as they are, must be habitually checked by
some means, probably by birds. Hence, if certain insectivorous birds (whose
numbers are probably regulated by hawks or beasts of prey) were to increase in
...
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action adapted allied America amount ancient animals appear become believe birds breeds cause chapter characters climate closely common compared considered continuous crossed descended developed difficulty distinct domestic doubt Edition effects existing extinct extremely facts families favourable fertility flowers follow formations forms genera genus geological give given groups habits hand Hence History hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind land laws less living look male manner means modification namely natural selection naturalists nearly never observed occur organic origin parent perfect period plants points Post 8vo present principle probably produced range ranked reason remarked Second seeds seems seen separated single slight sometimes species sterility structure struggle successive supposed tend theory tion variability variations varieties vary Vols whole widely Woodcuts
Bibliographic information
| Title | On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
| Author | Charles Darwin |
| Edition | 5 |
| Publisher | J. Murray, 1860 |
| Length | 502 pages |
| Export Citation | BiBTeX EndNote RefMan |