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- Lamarck's concept of evolution was limited in scope: in particular, he did not believe in extinction of species but rather thought that species are gradually transformed into other species via phyletic modification. Lamarck also believed in the innate tendency of organisms to progress toward perfection down the succession of generations.
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Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
- The Editors of Encyclopaedia Britannica
Nov 11, 2009 · Stress-induced mutagenesis and activation of mobile elements: quasi-Lamarckian phenomena. Darwin emphasized the evolutionary importance of genuinely random, undirected variation whereas the Lamarckian modality of evolution is centered at directed variation that is specifically caused by environmental factors.
- Eugene V Koonin, Yuri I Wolf
- 10.1186/1745-6150-4-42
- 2009
- Biol Direct. 2009; 4: 42.
There is a lot of evidence that supports Darwinian evolution ("natural selection") but not Lamarckian evolution. For starters, Lamarckism couldn't explain novel biochemistry.
Lamarckism, also known as Lamarckian inheritance or neo-Lamarckism, is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime.
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 ...
Lamarckism is also occasionally used to describe quasi-evolutionary concepts in societal contexts, though not by Lamarck himself. For example, the memetic theory of cultural evolution is sometimes described as a form of Lamarckian inheritance of nongenetic traits.
Nov 21, 2023 · The current evolutionary theories can be categorized as Darwinian and non-Darwinian ( Lamarckism ). Darwinism is a theory of biological evolution given by Charles Darwin.
