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Evolution 101. An introduction to evolution: what is evolution and how does it work? The history of life: looking at the patterns – Change over time and shared ancestors; Mechanisms: the processes of evolution – Selection, mutation, migration, and more; Microevolution – Evolution within a population; Speciation – How new species arise
Mar 20, 2024 · Lamarck made his most important contributions to science as a botanical and zoological systematist, as a founder of invertebrate paleontology, and as an evolutionary theorist. In his own day, his theory of evolution was generally rejected as implausible, unsubstantiated, or heretical.
Lamarck (1744 - 1829) remains the best known figure of the pre-Darwinian era of evolutionism. Regrettably, he is usually viewed as a mere caricature of his ideas, namely as the person who got it "wrong" for insisting on the inheritance of acquired features as the central mechanism of transmutation.
The doctrine, proposed by the French naturalist Jean-Baptiste Lamarck in 1809, influenced evolutionary thought through most of the 19th century. Lamarckism was discredited by most geneticists after the 1930s, but certain of its ideas continued to be held in the Soviet Union into the mid-20th century.
- The Editors of Encyclopaedia Britannica
Apr 12, 2021 · The Lamarckian concepts that we consider important for teaching evolutionary thought are the following: (1) the species as an arbitrary concept, directly related to the Lamarckian concept of the continuous transformation of species, (2) the ancestor–descendant relationship, and organic diversification from a common plan of organisation to a bran...
- Ricardo Noguera-Solano, Juan Manuel Rodríguez-Caso, Rosaura Ruiz-Gutiérrez
- 2021
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Image. Format: Graphic. Topics Covered: The Age of Darwin. Backgrounder. Jean Baptiste Lamarck: Although the name "Lamarck" is now associated with a discredited view of evolution,...
Jean-Baptiste Lamarck had already reached his midfifties when he first came to believe in evolution. Though the change in his thought was an important one, it is not clear that this change should be regarded as an example of extraordinary intellectual. flexibility for a scientist of that age.
