This foundation, regarded as the first evolutionary theory, was the basis for further research throughout the twentieth century. Therefore Lamarckism is also known as first comprehensive mechanistic theory of evolution. In On the Origin of Species, Charles Darwin accepted the principle of the inheritance of acquired characteristics as one of the factors contributory to evolution. Evolution Theory-Lamarckism (or Lamarckian inheritance) is the idea that an organism can pass on characteristics that it acquired during its lifetime to its offspring (also known as heritability of acquired characteristics or soft inheritance). During these 50 years Lamarck's model was a well known theory and it was discussed by the scientific community as a hypothesis to explain the changing nature of the fossil record throughout the history of Earth. Further reading: Natural Selection and Biological Evolution For more information on Lamarckism, Lamarck’s Theory, Examples and other related topics keep visiting BYJU’S website or download BYJU’S app for further reference. The … Lamarck's contributions to biology . Lamarck did not originate the idea of soft inheritance, which proposes that individual efforts during the lifetime of the organisms were the main mechanism driving species to adaptation, as they supposedly would acquire adaptive changes and pass them on to offspring. The influence of Lamarckism. In the modern era, Lamarck is remembered primarily for a theory of inheritance of acquired characters, called soft inheritance or Lamarckism. In a nutshell, Lamarck's legacy in the field of science and biology can be summarized as: Living beings have the ability to adapt to an ever-changing environment. Lamarck's transmutation theory established the foundation of an evolutionary model introducing a new way to research in nature. 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 ( 1774 – 1829 ) Jean Baptiste de Lamarck ( French ) published a book named Phylosophic Zoologique in 1809. (Wikipedia) Although the outline of the theory was brought to notice in 1801, his famous book “Philosophic Zoologique” was published in 1809, in which he discussed his theory in detail. 1. In which he explained the process of evolution by suitable examples. In the below section of Lamarck vs Darwin theory of evolution, there are noted down some of the major theories of evolution that prevailed in the contemporary era. Thus, in the Soviet Union, Lamarckism was labeled “creative Soviet Darwinism” until it lost its official endorsement in 1965. Jean-Baptiste de la Marck, often just known as "Lamarck", was a French soldier, naturalist, academic and an early proponent of the idea that evolution occurred and proceeded in accordance with natural laws. This endorsement of Lamarckism has resulted in some confusion in terminology. Jean Baptiste Lamarck argued for a very different view of evolution than Darwin's. Lamarck theory of evolution is also called as inheritance of acquired characters. Fig. Synthetic theory of evolution The theory is also termed as the Neo Darwinism in the discipline of biology. This theory is known as Neo-Lamarckism. Lamarckism is the first theory of evolution, which was proposed by Jean Baptiste de Lamarck (1744-1829), a French biologist. 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