Contributions to the Theory of Natural Selection: A Series of EssaysMacmillan, 1871 - 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 1
... the present state of the earth and of the organisms now * Written at Sarawak in February , 1855 , and published in the " Annals and Magazine of Natural History , " September , 1855 .グレ B inhabiting it , is but the last stage of a.
... the present state of the earth and of the organisms now * Written at Sarawak in February , 1855 , and published in the " Annals and Magazine of Natural History , " September , 1855 .グレ B inhabiting it , is but the last stage of a.
Page 2
A Series of Essays Alfred Russel Wallace. inhabiting it , is but the last stage of a long and uninterrupted series of changes which it has under- gone , and consequently , that to endeavour to explain and account for its present ...
A Series of Essays Alfred Russel Wallace. inhabiting it , is but the last stage of a long and uninterrupted series of changes which it has under- gone , and consequently , that to endeavour to explain and account for its present ...
Page 9
... inhabiting Asia , and that peculiar to South America , are examples that may be accounted for in this manner . Such phænomena as are exhibited by the Gala- pagos Islands , which contain little groups of plants and THE INTRODUCTION OF ...
... inhabiting Asia , and that peculiar to South America , are examples that may be accounted for in this manner . Such phænomena as are exhibited by the Gala- pagos Islands , which contain little groups of plants and THE INTRODUCTION OF ...
Page 31
... inhabits , and as soon as the supply of food begins to fail in one place is able to discover a fresh feeding - ground . This example strikingly shows us that the procuring a constant supply of wholesome food is almost the sole condition ...
... inhabits , and as soon as the supply of food begins to fail in one place is able to discover a fresh feeding - ground . This example strikingly shows us that the procuring a constant supply of wholesome food is almost the sole condition ...
Page 50
... inhabit . The Rev. H. Tristram , in his account of the ornithology of North Africa in the 1st volume of the " Ibis , " says : " In the desert , where neither ... inhabiting regions of almost perpetual snow 50 MIMICRY , AND OTHER PROTECTIVE.
... inhabit . The Rev. H. Tristram , in his account of the ornithology of North Africa in the 1st volume of the " Ibis , " says : " In the desert , where neither ... inhabiting regions of almost perpetual snow 50 MIMICRY , AND OTHER PROTECTIVE.
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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 adapted Amboyna anal valves animals antennæ appear beautiful become bees beetles believe birds Borneo brain build butterflies caterpillars causes Celebes changes character colour concealed conspicuous Crown 8vo curious Danaidæ Darwin Diphilus direction distinct Edition eggs essay exactly existence external extinct Extra fcap facts faculties favourable Fcap flowers genera genus geological groups habits Heliconidæ imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Malayan male materials mental mimic mimicry mode modified Moluccas moths natural selection nectary nest never observations occur organic Origin of Species Ormenus Pammon Papilio Papilio Ulysses Papilionidæ peculiar perfect phenomena POEMS Polydorus possess present probably produced Professor protection races reason regions remarkable render resemble savage sexes sexual sexual selection shown structure Sumatra tail theory of natural Theseus tints tion trees tropical variation varied varieties whole wings young birds
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