On the Origin of Species by Means of Natural Selection |
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Page 6
... Extinction caused by Natural Selection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and Extinction , on the ...
... Extinction caused by Natural Selection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and Extinction , on the ...
Page 7
... extinct intermediate varieties ; on their number - On the vast lapse of time , as inferred from the rate of deposition and of denudation - On the poorness of our palæonto- logical collections - On the intermittence of geological ...
... extinct intermediate varieties ; on their number - On the vast lapse of time , as inferred from the rate of deposition and of denudation - On the poorness of our palæonto- logical collections - On the intermittence of geological ...
Page 8
... Extinction separates and defines groups - MORPHOLOGY , between members of the same class , between parta of the same individual - EMBRYOLOGY , laws of , explained by variations not super- vening at an early age , and being inherited at ...
... Extinction separates and defines groups - MORPHOLOGY , between members of the same class , between parta of the same individual - EMBRYOLOGY , laws of , explained by variations not super- vening at an early age , and being inherited at ...
Page 12
... Extinction of the less improved forms of life , and induces what I have called Divergence of Character . In the next chapter I shall discuss the complex and little known laws of variation and of correlation of growth . In the four ...
... Extinction of the less improved forms of life , and induces what I have called Divergence of Character . In the next chapter I shall discuss the complex and little known laws of variation and of correlation of growth . In the four ...
Page 13
... extinct species , in the same manner as the acknowledged varieties of any one species are the descendants of that species . Furthermore , I am convinced that Natural Selection has been the main but not exclu sive means of modification ...
... extinct species , in the same manner as the acknowledged varieties of any one species are the descendants of that species . Furthermore , I am convinced that Natural Selection has been the main but not exclu sive means of modification ...
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Common terms and phrases
accumulated adapted affinities allied species America amount ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living look male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation varieties vary whole widely