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 …

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 …

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 …

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 …

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.

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

Aug 7, 2025 · In 1809, the same year Darwin was born, Lamarck published Philosophie Zoologique, a bold and sweeping work outlining his theory of evolution. Lamarck proposed that …