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 24
... structure are truly inherited , less strange and commoner deviations may be freely admitted to be inheritable . Perhaps the correct way of viewing the whole subject , would be , to look at the inheritance of every character whatever as ...
... structure are truly inherited , less strange and commoner deviations may be freely admitted to be inheritable . Perhaps the correct way of viewing the whole subject , would be , to look at the inheritance of every character whatever as ...
Page 28
... structure , the evidence preponderates in favour of their having all descended from the common wild duck and rabbit . . The doctrine of the origin of our several domestic races from several aboriginal stocks , has been carried to an ...
... structure , the evidence preponderates in favour of their having all descended from the common wild duck and rabbit . . The doctrine of the origin of our several domestic races from several aboriginal stocks , has been carried to an ...
Page 31
... structure which are variable . The period at which the perfect plumage is acquired varies , as does the state of the down with which the nestling birds are clothed when hatched . The shape and size of the eggs vary . The manner of ...
... structure which are variable . The period at which the perfect plumage is acquired varies , as does the state of the down with which the nestling birds are clothed when hatched . The shape and size of the eggs vary . The manner of ...
Page 33
... structure , with the wild rock - pigeon , yet are certainly highly abnormal in other parts of their structure ; we may look in vain throughout the whole great family of Columbidæ for a beak like that of the English carrier . or that of ...
... structure , with the wild rock - pigeon , yet are certainly highly abnormal in other parts of their structure ; we may look in vain throughout the whole great family of Columbidæ for a beak like that of the English carrier . or that of ...
Page 35
... structure with all the domestic breeds . Secondly , although an English carrier or short - faced tumbler differs immensely in certain characters from the rock - pigeon , yet by comparing the several sub - breeds of these varieties ...
... structure with all the domestic breeds . Secondly , although an English carrier or short - faced tumbler differs immensely in certain characters from the rock - pigeon , yet by comparing the several sub - breeds of these varieties ...
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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