The origin of species by means of natural selection¬²¬Ú¬á¬à¬Ý ¬¬¬Ý¬Ñ¬ã¬ã¬Ú¬Ü, 1929 - 488ÆäÀÌÁö |
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2 ÆäÀÌÁö
... point is discussed in this volume on which facts cannot be adduced, often a parently leading to conclusions directly op ite to t ose at which I have arrived. A fair resu t can be obtained only by fully stating and balancing the facts ...
... point is discussed in this volume on which facts cannot be adduced, often a parently leading to conclusions directly op ite to t ose at which I have arrived. A fair resu t can be obtained only by fully stating and balancing the facts ...
7 ÆäÀÌÁö
... points which strikes us is, that they enerally diifer more from each other than do the individuals of any one Species or variety in a state of nature. When we reflect on the vast diversity of the plants and animals which have been ...
... points which strikes us is, that they enerally diifer more from each other than do the individuals of any one Species or variety in a state of nature. When we reflect on the vast diversity of the plants and animals which have been ...
12 ÆäÀÌÁö
... points in structure and constitution in which the varieties and sub-varieties diifer slightly from each other. The whole organisation seems to have become plastic, and tends to depart in some small degree from that of the parental type ...
... points in structure and constitution in which the varieties and sub-varieties diifer slightly from each other. The whole organisation seems to have become plastic, and tends to depart in some small degree from that of the parental type ...
15 ÆäÀÌÁö
... point, if it could be cleared up, wo d be interesting; if, for instance, it could be shown that the greyhound, bloodhound, terrier, spaniel, and bull-dog, which we all know propagate their 'VARIATION UNDER DOMESTICATION 15.
... point, if it could be cleared up, wo d be interesting; if, for instance, it could be shown that the greyhound, bloodhound, terrier, spaniel, and bull-dog, which we all know propagate their 'VARIATION UNDER DOMESTICATION 15.
21 ÆäÀÌÁö
... points of structure which are variable. The period at which the perfect plumage is acquired varies, as does the state of the Own with which the nestling birds are clothed when hatched. The shape and size of the eggs vary. The manner of ...
... points of structure which are variable. The period at which the perfect plumage is acquired varies, as does the state of the Own with which the nestling birds are clothed when hatched. The shape and size of the eggs vary. The manner of ...
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5 | |
ON was GEOLOGICAL SUCCESSION OF ORGANIC | 155 |
GEOGRAPHICAL DISTRIBUTION | 282 |
Gnoonnmcu DISTRIBUTION Continued | 302 |
RECAPITULATION AND CONCLUSION | 415 |
41 | 449 |
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action adapted advantage allied America amount ancient animals appear become believe birds breeds cause characters climate closely common considered continuous crossed descendants difl'erent distinct domestic doubt evidence existing extinct extremely facts families favourable fertility find first flowers follow formations forms genera genus give given greater groups habits hand Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind known land laws less lines living look males manner means migration modification namely natural selection naturalists nearly never observed occur organic origin parent perfect period plants points present principle probably produced range ranked reason regions remains remarked resemble seeds seems seen separated shown single slight sometimes species sterility structure struggle successive suppose tend theory tion trees variability variations varieties vary whole widely