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And in 1801, a French naturalist named Jean Baptiste Pierre Antoine de Monet, Chevalier de Lamarck took a great conceptual step and proposed a full-blown theory of evolution. Lamarck started his scientific career as a botanist, but in 1793 he became one of the founding professors of the Musee National d’Histoire Naturelle as an expert on ...
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
Mar 20, 2024 · Jean-Baptiste Lamarck, pioneering French biologist who is best known for his idea that acquired characters are inheritable, an idea known as Lamarckism, which is refuted by modern genetics and evolutionary theory.
Lamarck's contribution to evolutionary theory consisted of the first truly cohesive theory of biological evolution, in which an alchemical complexifying force drove organisms up a ladder of complexity, and a second environmental force adapted them to local environments through use and disuse of characteristics, differentiating them from other ...
- 18 December 1829 (aged 85), Paris, France
Though he was building on the work of his mentor, Count George-Louis Leclerc de Buffon, Jean-Baptiste Lamarck (1744-1829) is often credited with making the first large advance toward modern evolutionary theory because he was the first to propose a mechanism by which the gradual change of species might take place.
Apr 12, 2021 · He takes Lamarck to be proposing primarily a theory of the origin of species, he presents it as a theory of common ancestry and as an attempt to explain the fossil record.
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