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 5
... Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ... species - Wide ranging , much diffused , and common species vary most - Species of the larger genera in any country ...
... Species - Domestic Pigeons , their Differences and Origin - Principle of Selection anciently followed , its Effects ... species - Wide ranging , much diffused , and common species vary most - Species of the larger genera in any country ...
Page 7
... species - On their different rates of change - Species once lost do not reappear - Groups of species follow the same gen- eral rules in their appearance and disappearance as do single species - On Extinc- tion - On simultaneous changes ...
... species - On their different rates of change - Species once lost do not reappear - Groups of species follow the same gen- eral rules in their appearance and disappearance as do single species - On Extinc- tion - On simultaneous changes ...
Page 13
... species and varieties , if he makes due allowance for our profound ignorance in regard to the mutual relations of all the beings which live around us . Who can explain why one species ranges widely and is very numerous , and why another ...
... species and varieties , if he makes due allowance for our profound ignorance in regard to the mutual relations of all the beings which live around us . Who can explain why one species ranges widely and is very numerous , and why another ...
Page 21
... species closely allied together , we generally perceive in each domestic race , as already remarked , less uniformity of character than in true species . Domestic races of the same species , also , often have a somewhat monstrous char ...
... species closely allied together , we generally perceive in each domestic race , as already remarked , less uniformity of character than in true species . Domestic races of the same species , also , often have a somewhat monstrous char ...
Page 22
... species . If any marked distinction existed between domestic races and species , this source of doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in char- acters of generic ...
... species . If any marked distinction existed between domestic races and species , this source of doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in char- acters of generic ...
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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 disuse 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 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