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Lamarckism is a theory of evolution that proposes that physical changes in organisms during their lifetime can be inherited by their offspring. Learn about its origin, examples, influence, and criticism from Britannica's editors.
Lamarck proposed that organisms evolved through use and disuse of organs, and that life tended to become more complex over time. He was one of the first naturalists to suggest that life changed by natural processes, but his ideas were rejected by many of his contemporaries.
Lamarckism is the idea that organisms can pass on to their offspring traits they acquired through use or disuse during their lifetime. It was proposed by Jean-Baptiste Lamarck and supported by Charles Darwin, but later disproved by genetic research and rediscovered by epigenetics.
Learn about the life and work of Jean-Baptiste Lamarck, a French biologist who proposed the idea of inherited acquired characters, known as Lamarckism. Explore his contributions to botany, zoology, and geology, and how he influenced Darwin's theory of evolution.
12 Απρ 2024 · Learn about Lamarck’s theory of evolution, which proposes that organisms can inherit acquired characteristics from their parents. Explore the postulates, examples, evidence, criticism, and neo-Lamarckism of this theory.
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.
Learn about the life and work of Lamarck, the first to publish a book-length treatment of evolution in 1809. Explore his ideas on inheritance of acquired characters, zoology, botany, and more.
