Contributions to the Theory of Natural SelectionRead Books Ltd, 25. mai 2016 - 420 pages This early work by Alfred Russel Wallace was originally published in 1870 and we are now republishing it with a brand new introductory biography. 'Contributions to the Theory of Natural Selection' is a series of essays on evolutionary theory, that include 'Mimicry, and Other Protective Resemblances Among Animals, 'The Philosohy of Birds' Nests', 'Creation by Law', and more. Alfred Russel Wallace was born on 8th January 1823 in the village of Llanbadoc, in Monmouthshire, Wales. Wallace was inspired by the travelling naturalists of the day and decided to begin his exploration career collecting specimens in the Amazon rainforest. He explored the Rio Negra for four years, making notes on the peoples and languages he encountered as well as the geography, flora, and fauna. While travelling, Wallace refined his thoughts about evolution and in 1858 he outlined his theory of natural selection in an article he sent to Charles Darwin. Wallace made a huge contribution to the natural sciences and he will continue to be remembered as one of the key figures in the development of evolutionary theory. |
From inside the book
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... produced a complicated branching of the lines of affinity, as intricate as the twigs of a gnarled oak or the vascular system of the human body. Again, if we consider that we have only fragments of this vast system, the stem and main ...
... produced a complicated branching of the lines of affinity, as intricate as the twigs of a gnarled oak or the vascular system of the human body. Again, if we consider that we have only fragments of this vast system, the stem and main ...
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... have been formed, each varying from it in a different manner, and thus producing several representative or analogous groups. The Sylviadæ of Europe and the Sylvicolidæ of North America, the Heliconidæ of South America and the Euplœas of.
... have been formed, each varying from it in a different manner, and thus producing several representative or analogous groups. The Sylviadæ of Europe and the Sylvicolidæ of North America, the Heliconidæ of South America and the Euplœas of.
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... produced in a state of domesticity are more or less unstable, and often have a tendency, if left to themselves, to ... produce an offspring unlike itself and resembling the other. This, however, would seem quite incompatible with the ...
... produced in a state of domesticity are more or less unstable, and often have a tendency, if left to themselves, to ... produce an offspring unlike itself and resembling the other. This, however, would seem quite incompatible with the ...
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... produces, in domesticated animals, the tendency of varieties to return to the parent form. The. Struggle. for. Existence. The life of wild animals is a struggle for existence. The full exertion of all their faculties and all their energies ...
... produces, in domesticated animals, the tendency of varieties to return to the parent form. The. Struggle. for. Existence. The life of wild animals is a struggle for existence. The full exertion of all their faculties and all their energies ...
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... produce less than two young ones each year, while many have six, eight, or ten; four will certainly be below the average; and if we suppose that each pair produce young only four times in their life, that will also be below the average ...
... produce less than two young ones each year, while many have six, eight, or ten; four will certainly be below the average; and if we suppose that each pair produce young only four times in their life, that will also be below the average ...
Other editions - View all
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 affinities Amboyna animals antennæ appear beautiful become beetles believe birds Borneo brain brilliant build butterflies caterpillars causes Celebes changes characters concealment consider conspicuous colours curious Danaidæ Darwin Diphilus distinct earth eggs enemies equally evidence exactly example existence external extinct facts faculties favourable female flowers genera genus geological groups Guinea habits harmony Heliconidæ imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Longicorn Malayan male man’s mental Mimeta mimic mimicry mode modifications Moluccas moths natural selection nectary nest never nidification number of species observation 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 result savage sexes sexual sexual selection shown specimens structure Sumatra tail theory of natural Theseus tints trees tropical Tropidorhynchus variation varied varieties whole wings