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 8
... breed freely under confinement , even in the many cases when the male and female unite . How many animals there are which will not breed , though living long under not very close con- finement in their native country ! This is generally ...
... breed freely under confinement , even in the many cases when the male and female unite . How many animals there are which will not breed , though living long under not very close con- finement in their native country ! This is generally ...
Page 9
... breed in this country pretty freely under confinement , with the exception of the plantigrades or bear family ; whereas carnivorous birds , with the rarest exceptions , hardly ever lay fertile eggs . Many exotic plants have pollen ...
... breed in this country pretty freely under confinement , with the exception of the plantigrades or bear family ; whereas carnivorous birds , with the rarest exceptions , hardly ever lay fertile eggs . Many exotic plants have pollen ...
Page 11
... Breeders believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus Deutschoo M DIDICA cats with blue eyes are invariably deaf ; colour and CHAP . I. 11 UNDER ...
... Breeders believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus Deutschoo M DIDICA cats with blue eyes are invariably deaf ; colour and CHAP . I. 11 UNDER ...
Page 13
... breeds are often transmitted either exclusively , or in a much greater degree , to males alone . A much more important rule , which I think may be trusted , is that , at whatever period of life a peculiarity first appears , it tends to ...
... breeds are often transmitted either exclusively , or in a much greater degree , to males alone . A much more important rule , which I think may be trusted , is that , at whatever period of life a peculiarity first appears , it tends to ...
Page 15
... breed our cart and race - horses , long and short - horned cattle , and poultry of various breeds , and esculent vegetables , for an almost infinite number of generations , would be opposed to all experience . I may add , that when ...
... breed our cart and race - horses , long and short - horned cattle , and poultry of various breeds , and esculent vegetables , for an almost infinite number of generations , would be opposed to all experience . I may add , that when ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap 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 less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest oceanic islands offspring organisation perfect pigeons plants pollen present probably produced progenitor racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs seeds sexual selection Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely