The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Том 1AMS Press, 1972 - Всего страниц: 479 This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy! |
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Стр. 49
... probably with the length of hair . With respect to fleetness , which depends on many bodily characters , Eclipse was far fleeter , and a dray - horse is incomparably stronger than any two natural species belonging to the same genus . So ...
... probably with the length of hair . With respect to fleetness , which depends on many bodily characters , Eclipse was far fleeter , and a dray - horse is incomparably stronger than any two natural species belonging to the same genus . So ...
Стр. 89
... probably by other parasitic insects . Hence , if certain insectivorous birds were to decrease in Paraguay , the parasitic insects would probably increase ; and this and this would lessen the number of the navel - frequenting flies ...
... probably by other parasitic insects . Hence , if certain insectivorous birds were to decrease in Paraguay , the parasitic insects would probably increase ; and this and this would lessen the number of the navel - frequenting flies ...
Стр. 329
... probably concurred in civilising by inheritance cur dogs . On the other hand , young chickens have lost , wholly by habit , that fear of the dog and cat which no doubt was originally instinctive in them ; for I am in- formed by Captain ...
... probably concurred in civilising by inheritance cur dogs . On the other hand , young chickens have lost , wholly by habit , that fear of the dog and cat which no doubt was originally instinctive in them ; for I am in- formed by Captain ...
Содержание
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
Авторские права | |
Не показаны другие разделы: 5
Часто встречающиеся слова и выражения
acquired adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young