The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life and The Descent of Man and Selection in Relation to SexModern library, 1936 - 1000 páginas |
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Página 92
... descended from a form which stood between the parent - species ( A ) and ( I ) , now supposed to be extinct and unknown , it will be in some degree intermediate in character between the two groups descended from these two species . But ...
... descended from a form which stood between the parent - species ( A ) and ( I ) , now supposed to be extinct and unknown , it will be in some degree intermediate in character between the two groups descended from these two species . But ...
Página 283
... descended from a single pair , or single hermaphrodite , or whether , as some authors suppose , from many individuals simultaneously created . With organic beings which never intercross , if such exist , each species must be descended ...
... descended from a single pair , or single hermaphrodite , or whether , as some authors suppose , from many individuals simultaneously created . With organic beings which never intercross , if such exist , each species must be descended ...
Página 319
... descended from ( A ) , form an order distinct from the genera descended from ( I ) . So that we here have many species descended from a single progenitor grouped into genera ; and the genera into sub - families , families , and orders ...
... descended from ( A ) , form an order distinct from the genera descended from ( I ) . So that we here have many species descended from a single progenitor grouped into genera ; and the genera into sub - families , families , and orders ...
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Términos y frases comunes
acquired adult allied apes appear beak beautiful become believe birds breeds cause characters civilised closely colour common confined crossed crustaceans degree descended developed distinct species domestic doubt eggs existing extinct extremely fact favourable feathers female fertility fishes formation forms Fritz Müller genera genus given gradations greater number groups habits Hence hybrids important individuals inhabitants inherited insects instance instincts intermediate islands kind larvæ latter Lepidoptera less likewise living lower animals Malay Archipelago males mammæ mammals manner Marsupials modified monkeys natural selection naturalists nearly nest observed ocelli offspring organs Origin of Species ornaments perfect period pigeons plumage pollen present probably produced progenitor quadrupeds races Red Grouse relation remarks resemble rudimentary seeds sexes sexual selection shew shewn slight South America sterility stridulating structure supposed tail tion variability variations varieties various vary whilst whole widely wings young