On the Origin of Species by Means of Natural Selection |
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Page 9
... facts in the distribution of the inhabitants of South America , and in the geological rela- tions of the present to the past inhabitants of that con- tinent . These facts seemed to me to throw some light on the origin of species - that ...
... facts in the distribution of the inhabitants of South America , and in the geological rela- tions of the present to the past inhabitants of that con- tinent . These facts seemed to me to throw some light on the origin of species - that ...
Page 10
... facts in illustration , but which , I hope , in most cases will suffice . No one can feel more sensible than I do of the necessity of hereafter publishing in detail all the facts , with references , on which my con- clusions have been ...
... facts in illustration , but which , I hope , in most cases will suffice . No one can feel more sensible than I do of the necessity of hereafter publishing in detail all the facts , with references , on which my con- clusions have been ...
Page 18
... facts collected by Heusinger , it appears that white sheep and pigs are differently affected from coloured individuals by certain vegetable poisons . Hairless dogs have imper- fect teeth ; long - haired and coarse - haired animals are ...
... facts collected by Heusinger , it appears that white sheep and pigs are differently affected from coloured individuals by certain vegetable poisons . Hairless dogs have imper- fect teeth ; long - haired and coarse - haired animals are ...
Page 20
... facts make me believe that the rule has a wider extension , and that when there is no apparent reason why a peculiarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which ...
... facts make me believe that the rule has a wider extension , and that when there is no apparent reason why a peculiarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which ...
Page 22
... facts would have great weight in making us doubt about the immutability of the many very closely allied natural species - for instance , of the many foxes - inhabiting different quarters of the world . I do not believe , as we shall ...
... facts would have great weight in making us doubt about the immutability of the many very closely allied natural species - for instance , of the many foxes - inhabiting different quarters of the world . I do not believe , as we shall ...
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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