The Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeJohn Murray, 1873 - 458ÆäÀÌÁö |
µµ¼ º»¹®¿¡¼
84°³ÀÇ °á°ú Áß 1 - 5°³
vi ÆäÀÌÁö
... developed in an unusual manner are highly variable : specific characters more variable than generic : secondary sexual characters variable - Species of the same genus vary in an analogous manner Reversions to long - lost characters ...
... developed in an unusual manner are highly variable : specific characters more variable than generic : secondary sexual characters variable - Species of the same genus vary in an analogous manner Reversions to long - lost characters ...
vii ÆäÀÌÁö
... developed from one and the same source - Reasons for disbeliev- ng in great and abrupt modifications Page 168-204 .... - CHAPTER VIII . INSTINCT . - Instincts comparable with habits , but different in their origin - Instincts graduated ...
... developed from one and the same source - Reasons for disbeliev- ng in great and abrupt modifications Page 168-204 .... - CHAPTER VIII . INSTINCT . - Instincts comparable with habits , but different in their origin - Instincts graduated ...
4 ÆäÀÌÁö
... developed being or into an elaborately constructed organ ; secondly , the subject of Instinct , or the mental powers of animals ; thirdly , Hybridism , or the infertility of species and the fertility of varieties when intercrossed ; and ...
... developed being or into an elaborately constructed organ ; secondly , the subject of Instinct , or the mental powers of animals ; thirdly , Hybridism , or the infertility of species and the fertility of varieties when intercrossed ; and ...
16 ÆäÀÌÁö
... developed crop , which it glories in inflating , may well excite astonishment and even laughter . The turbit has a short and conical beak , with a line of reversed feathers down the breast ; and it has the habit of continually expanding ...
... developed crop , which it glories in inflating , may well excite astonishment and even laughter . The turbit has a short and conical beak , with a line of reversed feathers down the breast ; and it has the habit of continually expanding ...
18 ÆäÀÌÁö
... developed . Moreover , when birds belonging to two or more distinct breeds are crossed , none of which are blue or have any of the above - specified marks , the mongrel offspring are very apt suddenly to acquire these characters . To ...
... developed . Moreover , when birds belonging to two or more distinct breeds are crossed , none of which are blue or have any of the above - specified marks , the mongrel offspring are very apt suddenly to acquire these characters . To ...
±âŸ ÃâÆǺ» - ¸ðµÎ º¸±â
ÀÚÁÖ ³ª¿À´Â ´Ü¾î ¹× ±¸¹®
adapted admit affinities allied species America analogous ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continuous crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formations formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important increase 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 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 theory tion variability variations varieties vary whilst whole wings young
Àαâ Àο뱸
1 ÆäÀÌÁö - These facts, as will be seen in the latter chapters of this volume, seemed to throw some light on the origin of species — that mystery of mysteries, as it has been called by one of our greatest philosophers.
162 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
1 ÆäÀÌÁö - ... of our greatest philosophers. On my return home, it occurred to me, in 1837, that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it. After five years' work I allowed myself to speculate on the subject, and drew up some short notes...
424 ÆäÀÌÁö - Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype. But analogy may be a deceitful guide.
50 ÆäÀÌÁö - In these several senses, which pass into each other, I use for convenience' sake the general term of Struggle for Existence.
322 ÆäÀÌÁö - Every species has come into existence coincident both in space and time with a pre-existing closely allied species.
146 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.
310 ÆäÀÌÁö - I strongly insisted, in 1839 and 1845, on this " law of the succession of types,"—on " this wonderful relationship in the same continent between the dead and the living." Professor Owen has subsequently extended the same generalisation to the mammals of the Old World. We see the same law in this author's restorations of the extinct and gigantic birds of New Zealand. We see it also in the birds of the caves of Brazil. Mr. Woodward has shown that the same law holds good with sea-shells, but, from...
57 ÆäÀÌÁö - Now the number of. mice is largely dependent, as every one knows, on the number of cats; and Col.
103 ÆäÀÌÁö - It is a truly wonderful fact—the wonder of which we are apt to overlook from familiarity—that all animals and all plants throughout all time and space should be related to each other in groups subordinate to groups, in the manner which we everywhere behold...