Contributions to the Theory of Natural Selection: A Series of EssaysAMS Press, 1973 - 384 pages Wallace noticed on expeditions to the Amazon and the Malay archipelego that mammals in Southeast Asia are more advanced than their Australian cousins. His suggestion was that the two continents had split before the better adapted mammals had evolved in Asia. The isolated Australian marsupials were able to thrive, whilst those in Asia were driven to extinction by competition from more advanced mammals. This led to his theory of natural selection, which he presented to the Linnean Society in 1858 with Charles Darwin. This volume reprints those papers presented to the Linnean Society. |
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Page 148
... true P. Polytes , there are several allied forms of females to be considered , namely , P. Theseus ( Cramer ) , P. Melanides ( De Haan ) , P. Elyros ( G. R. Gray ) , and P. Romulus ( Linnæus ) . The dark female figured by Cramer as P ...
... true P. Polytes , there are several allied forms of females to be considered , namely , P. Theseus ( Cramer ) , P. Melanides ( De Haan ) , P. Elyros ( G. R. Gray ) , and P. Romulus ( Linnæus ) . The dark female figured by Cramer as P ...
Page 162
... true theory is , that it accounts for , or at the very least is not inconsistent with , the whole of the phe- nomena and apparent anomalies of the problem to be solved , it is reasonable to ask that those who deny the origin of species ...
... true theory is , that it accounts for , or at the very least is not inconsistent with , the whole of the phe- nomena and apparent anomalies of the problem to be solved , it is reasonable to ask that those who deny the origin of species ...
Page 166
... true law embraces all apparent exceptions , and that to the great laws of nature there are no real excep- tions — that what appear to be such are equally results of law , and are often ( perhaps indeed always ) those very results which ...
... true law embraces all apparent exceptions , and that to the great laws of nature there are no real excep- tions — that what appear to be such are equally results of law , and are often ( perhaps indeed always ) those very results which ...
Contents
Geographical distribution dependent on Geologic Changes A | 1 |
On the Tendency of Varieties to depart indefinitely from | 26 |
onlyCause of the dull Colours of Female BirdsUse of the gaudy | 129 |
Copyright | |
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Contributions to the Theory of Natural Selection: A Series of Essays ... Alfred Russel Wallace No preview available - 2018 |
Contributions to the Theory of Natural Selection: A Series of Essays Alfred Russel Wallace No preview available - 2016 |
Common terms and phrases
abundant action adapted affinity Amboyna anal valves animals antennæ appear beauty become beetles birds Borneo brain brilliant build butterflies caterpillars causes Celebes changes character closely allied species colour concealed conspicuous curious Danaidæ Darwin Diphilus distinct eggs equally evidence exactly existence external extinct facts faculties favourable female birds flowers genera genus geological groups Guinea habits hairy harmony Heliconidæ imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Malayan male mental Mimeta mimic mimicry mode modifications Moluccas moths natural selection nectary nest never nidification number of species observations occur organic Origin of Species Ormenus Pammon Papilio Papilio Ulysses Papilionidæ peculiar perfect phenomena Polydorus possess present probably produced protection races regions remarkable render resemble savage sexes sexual sexual selection shown structure Sumatra tail theory of natural Theseus tints tion trees tropical Tropidorhynchus variation varied varieties whole wings yellow