The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, 1±ÇD. Appleton & Company, 1889 |
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ix ÆäÀÌÁö
... present editions on various subjects , according as the evidence has become somewhat stronger or weaker . The more important corrections and some additions in the present volume are tabulated on the following page , for the convenience ...
... present editions on various subjects , according as the evidence has become somewhat stronger or weaker . The more important corrections and some additions in the present volume are tabulated on the following page , for the convenience ...
xv ÆäÀÌÁö
... present day of simple productions , he maintains that such forms are now spontaneously generated . * Geoffroy Saint - Hilaire , as is stated in his ' Life , ' written by his son , suspected , as early as 1795 , that what we call species ...
... present day of simple productions , he maintains that such forms are now spontaneously generated . * Geoffroy Saint - Hilaire , as is stated in his ' Life , ' written by his son , suspected , as early as 1795 , that what we call species ...
xvii ÆäÀÌÁö
... present volume . Unfortunately the view was given by Mr. Matthew very briefly in scattered passages in an Appendix to a work on a different subject , so that it remained unnoticed until Mr. Matthew himself drew attention to it in the ...
... present volume . Unfortunately the view was given by Mr. Matthew very briefly in scattered passages in an Appendix to a work on a different subject , so that it remained unnoticed until Mr. Matthew himself drew attention to it in the ...
xxiii ÆäÀÌÁö
... present . He lays weight on what he calls the principle of finality , " puissance mystérieuse , indéterminée ; fatalité pour les uns ; pour les autres , volonté provi- dentielle , dont l'action incessante sur les êtres vivants détermine ...
... present . He lays weight on what he calls the principle of finality , " puissance mystérieuse , indéterminée ; fatalité pour les uns ; pour les autres , volonté provi- dentielle , dont l'action incessante sur les êtres vivants détermine ...
6 ÆäÀÌÁö
... present welfare and , as I believe , the future success and modification of every inhabitant of this world . Still less do we know of the mutual relations of the innumerable inhabitants of the world during the many past geological ...
... present welfare and , as I believe , the future success and modification of every inhabitant of this world . Still less do we know of the mutual relations of the innumerable inhabitants of the world during the many past geological ...
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The Origin of Species by Means of Natural Selection; Or, The ..., 1±Ç Charles Darwin ªÀº ¹ßÃé¹® º¸±â - 1872 |
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adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely Cloth colour common crossed cuckoo degree descendants developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus gradations greater number groups habits Hence hermaphrodites hive-bee important improved inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ large number larger genera larv©¡ less likewise males manner Mivart modified natural selection naturalists nearly nest neuters occasionally offspring organisation organs origin ORIGIN OF SPECIES parent perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle sub-breeds supposed swimbladder tend tendency tion transitional tree tumbler pigeon variability variations varieties vary widely wild wings young
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227 ÆäÀÌÁö - If it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not have been produced through natural selection.
203 ÆäÀÌÁö - If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down.
75 ÆäÀÌÁö - Several writers have misapprehended or objected to the term Natural Selection, Some have even imagined that natural selection induces variability, whereas it' implies only the. preservation of such variations as arise and are beneficial to the being under its conditions of * life.
xxv ÆäÀÌÁö - As many more individuals of each species are born than can possibly survive ; and as, consequently, there is a frequently recurring straggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected.
xix ÆäÀÌÁö - In the distant future I see open fields for far more important researches. Psychology will be based on a new foundation, that of the necessary acquirement of each mental power and capacity by gradation. Light will be thrown on the origin of man and his history.
144 ÆäÀÌÁö - It is well known that several animals, belonging to the most different classes, which inhabit the caves of Carniola and of Kentucky, are blind. In some of the crabs the foot-stalk for the eye remains, though the eye is gone; — the stand for the telescope is there, though the telescope with its glasses has been lost. As it is difficult to imagine that eyes, though useless, could be in any way injurious to animals living in darkness, their loss may be attributed to disuse.
55 ÆäÀÌÁö - Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult — at least I have found it so — than constantly to bear this conclusion in mind.
341 ÆäÀÌÁö - Cloth, $2.00. DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE SAME SPECIES. With Illustrations. 12mo. Cloth, $1.50. THE POWER OF MOVEMENT IN PLANTS. By CHARLES DARWIN, LL. D., FRS, assisted by FRANCIS DARWIN.
140 ÆäÀÌÁö - The limbs divided into great branches, and these into lesser and lesser branches, were themselves once, when the tree was small, budding twigs; and this connection of the former and present buds by ramifying branches may well represent the classification of all extinct and living species in groups subordinate to groups.
140 ÆäÀÌÁö - The affinities of all the beings of the same class have sometimes been represented by a great tree. I believe this simile largely speaks the truth. The green and budding twigs may represent existing species ; and those produced during each former year may represent the long succession of extinct species.