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 …

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 …

This sort of evolution, for which Lamarck is most famous today, was only one of two mechanisms he proposed. As organisms adapted to their surroundings, nature also drove them inexorably upward …

Jul 23, 2025 · Lamarck's Theory of Evolution, also called Lamarckism, was proposed by Jean-Baptiste de Monet Lamarck in the year 1744-1829. Lamarckism is related to the inheritance of acquired …

Aug 5, 2025 · Unpack Lamarck’s historical theory of evolution, its scientific journey through rejection, and its subtle presence in modern biological thought.

Oct 13, 2025 · Lamarck’s theory of evolution, often called Lamarckism, was built upon two primary concepts explaining how organisms adapt to their surroundings and pass on those adaptations.

Mar 24, 2026 · French naturalist Jean-Baptiste Lamarck outlined the idea in his 1809 work Philosophie Zoologique, making it one of the earliest systematic theories of biological change. Lamarck's theory …