On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 112
... explained . It is a truly wonderful fact - the wonder of which we are apt to overlook from familiarity - that all animals and all plants throughout all time and space should be related to each other in group subordinate to group , in ...
... explained . It is a truly wonderful fact - the wonder of which we are apt to overlook from familiarity - that all animals and all plants throughout all time and space should be related to each other in group subordinate to group , in ...
Page 349
... explained on the theory of descent with modification - Classification of varieties- Descent always used in classification - Analogical adaptive characters - Affinities , general , complex and radiating - Extinction separates and defines ...
... explained on the theory of descent with modification - Classification of varieties- Descent always used in classification - Analogical adaptive characters - Affinities , general , complex and radiating - Extinction separates and defines ...
Page 350
... explained , of these several principles ; and he will see that the inevitable result is that the modified descendants pro- ceeding from one progenitor become broken up into groups subordinate to groups . In the diagram each letter on ...
... explained , of these several principles ; and he will see that the inevitable result is that the modified descendants pro- ceeding from one progenitor become broken up into groups subordinate to groups . In the diagram each letter on ...
Contents
VARIATION UNDER DOMESTICATION | 6 |
VARIATION UNDER NATURE | 38 |
STRUGGLE FOR EXISTENCE | 52 |
Copyright | |
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Common terms and phrases
accumulated adapted affinities allied species amount analogous ancient animals appear archipelago become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distant distinct species divergence domestic doubt eggs embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flower formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important increase in number individuals inhabitants inherited insects instance instincts intercrossing land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally oceanic islands offspring perfect pigeons pistil plants pollen present probably produced progenitor ranked reciprocal crosses remarked resemblance seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder theory tion trees variability variations vary whole widely