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 77
... comparatively less abundant in individuals , and are often very rare . These laws will be found to hold good , in all the cases of true mimicry among various classes of animals to which we have now to call the attention of our readers ...
... comparatively less abundant in individuals , and are often very rare . These laws will be found to hold good , in all the cases of true mimicry among various classes of animals to which we have now to call the attention of our readers ...
Page 94
... comparatively soft and eatable , to be mistaken for them . We need not be surprised , therefore , to find that there are many Longicorns which strikingly resemble the " hard beetles " of their own district . In South Brazil ...
... comparatively soft and eatable , to be mistaken for them . We need not be surprised , therefore , to find that there are many Longicorns which strikingly resemble the " hard beetles " of their own district . In South Brazil ...
Page 97
... comparatively so little cared for by collectors . Insects mimicking Species of other Orders . The most remarkable case of an insect of another order mimicking a beetle is that of the Condylodera tricondyloides , one of the cricket ...
... comparatively so little cared for by collectors . Insects mimicking Species of other Orders . The most remarkable case of an insect of another order mimicking a beetle is that of the Condylodera tricondyloides , one of the cricket ...
Page 100
... comparatively small , and thus the chances of that first accidental resemblance which is necessary for natural selection to work upon are much diminished . We can hardly see the possibility of a mimicry by which the elk could escape ...
... comparatively small , and thus the chances of that first accidental resemblance which is necessary for natural selection to work upon are much diminished . We can hardly see the possibility of a mimicry by which the elk could escape ...
Page 128
... comparatively little is really known . The natural history of the tropics has never yet been studied on the spot with a full appreciation of " what to observe " in this matter . The varied ways in which the colouring and form of animals ...
... comparatively little is really known . The natural history of the tropics has never yet been studied on the spot with a full appreciation of " what to observe " in this matter . The varied ways in which the colouring and form of animals ...
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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
Popular passages
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