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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.
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.
Lamarckism, formulated by Jean-Baptiste de Monet Lamarck, is based on four fundamental postulates that form the core of his evolutionary theory: The Inner Urge of Organisms: Lamarck proposed that organisms have an innate drive to develop and grow in size.
His theory of evolution only achieved fame after the publication of Charles Darwin's On the Origin of Species (1859), which spurred critics of Darwin's new theory to fall back on Lamarckian evolution as a more well-established alternative.
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.
At the beginning of the 19th century Jean-Baptiste Lamarck was a French scientist who developed an alternative theory of. evolution. before Charles Darwin. Lamarck's theory involved...
In the case of the French biologist Jean-Baptiste Lamarck, his name since the end of the nineteenth century has been tightly linked to the idea of the inheritance of acquired characters. This was indeed an idea that he endorsed, but he did not claim it as his own nor did he give it much thought.
(Redirected from Philosophie Zoologique) Philosophie Zoologique ("Zoological Philosophy, or Exposition with Regard to the Natural History of Animals") is an 1809 book by the French naturalist Jean-Baptiste Lamarck, in which he outlines his pre-Darwinian theory of evolution, part of which is now known as Lamarckism.
The idea is named after the French zoologist Jean-Baptiste Lamarck (1744–1829), who incorporated the classical era theory of soft inheritance into his theory of evolution as a supplement to his concept of orthogenesis, a drive towards complexity. Introductory textbooks contrast Lamarckism with Charles Darwin's theory of evolution by natural ...
Jean Baptiste Lamarck argued for a very different view of evolution than Darwin's. Lamarck believed that simple life forms continually came into existence from dead...