On the Origin of Species by Means of Natural Selection: Or The Preservation of Favored Races in the Struggle for Life, 2±ÇD. Appleton, 1888 - 458ÆäÀÌÁö |
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9 ÆäÀÌÁö
... believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats which are entirely white and have blue eyes are generally deaf ; but it has been lately stated by ...
... believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats which are entirely white and have blue eyes are generally deaf ; but it has been lately stated by ...
10 ÆäÀÌÁö
... 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 it first ...
... 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 it first ...
13 ÆäÀÌÁö
... believe that a small part of the difference is due to their being descended from distinct species . In the case of strongly marked races of some other domesticated species , there is presumptive or even strong evidence , that all are ...
... believe that a small part of the difference is due to their being descended from distinct species . In the case of strongly marked races of some other domesticated species , there is presumptive or even strong evidence , that all are ...
14 ÆäÀÌÁö
... believe that these latter lave had two or three wild progenitors , —whether or not these deserve to be called species . This conclusion , as well as that of the specific distinction between the humped and common cattle , may , indeed ...
... believe that these latter lave had two or three wild progenitors , —whether or not these deserve to be called species . This conclusion , as well as that of the specific distinction between the humped and common cattle , may , indeed ...
17 ÆäÀÌÁö
... believe that any ornithologist would in this case place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail in the same genus ; more especially as in each of these breeds several truly ...
... believe that any ornithologist would in this case place the English carrier , the short - faced tumbler , the runt , the barb , pouter , and fantail in the same genus ; more especially as in each of these breeds several truly ...
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adapted admit affinities allied species America analogous ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ larv©¡ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed tend theory tion variability variations varieties vary whilst whole wings young