On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
From inside the book
Results 1-5 of 100
Page 7
... 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 10
... species - On their different rates of change - Species once lost do not reappear- Groups of species follow the same general rules in their appear- ance and disappearance as do single species - On Extinction- On simultaneous changes in ...
... species - On their different rates of change - Species once lost do not reappear- Groups of species follow the same general rules in their appear- ance and disappearance as do single species - On Extinction- On simultaneous changes in ...
Page 26
... species , 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 character ; by which I mean ...
... species , 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 character ; by which I mean ...
Page 49
... species - Wide ranging , much diffused , and common species vary most - Species of the larger genera in any country vary more than the species of the smaller genera - Many of the species of the larger genera resemble varieties in being ...
... species - Wide ranging , much diffused , and common species vary most - Species of the larger genera in any country vary more than the species of the smaller genera - Many of the species of the larger genera resemble varieties in being ...
Page 52
... species , but which are so closely similar to some other forms , or are so closely linked to them by intermediate gradations , that naturalists do not like to rank them as distinct species , are in several respects the most important ...
... species , but which are so closely similar to some other forms , or are so closely linked to them by intermediate gradations , that naturalists do not like to rank them as distinct species , are in several respects the most important ...
Other editions - View all
Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago 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 existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely