On the Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life1859 |
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Page vi
... climate Protection from the number of individuals - Complex relations of all animals and plants throughout nature — Struggle for life most severe between individuals and varieties of the same species ; often severe be- tween species of ...
... climate Protection from the number of individuals - Complex relations of all animals and plants throughout nature — Struggle for life most severe between individuals and varieties of the same species ; often severe be- tween species of ...
Page viii
... climate and of the level of the land , and by occasional means - Dispersal during the Glacial period co - extensive with the world 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of viii CONTENTS .
... climate and of the level of the land , and by occasional means - Dispersal during the Glacial period co - extensive with the world 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of viii CONTENTS .
Page 3
... climate , food , & c . , as the only possible cause of variation . In one very limited sense , as we shall hereafter see , this may be true ; but it is pre- posterous to attribute to mere external conditions , the structure , for ...
... climate , food , & c . , as the only possible cause of variation . In one very limited sense , as we shall hereafter see , this may be true ; but it is pre- posterous to attribute to mere external conditions , the structure , for ...
Page 7
... climates and treatment , I think we are driven to conclude that this greater variability is simply due to our domestic productions having been raised under con- ditions of life not so uniform as , and somewhat different from , those to ...
... climates and treatment , I think we are driven to conclude that this greater variability is simply due to our domestic productions having been raised under con- ditions of life not so uniform as , and somewhat different from , those to ...
Page 11
... climate . Habit also has a decided influence , as in the period of flowering with plants when transported from one climate to another . In animals it has a more marked effect ; for instance , I find in the domestic duck that the bones ...
... climate . Habit also has a decided influence , as in the period of flowering with plants when transported from one climate to another . In animals it has a more marked effect ; for instance , I find in the domestic duck that the bones ...
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Common terms and phrases
adapted affinities allied species America amount analogous ancient animals become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble Second Edition seeds sexual selection Silurian slight South America sterility structure struggle successive suppose theory Third Edition tion variability variation varieties vary Vols whole widely Woodcuts