Lamarck, Jean-Baptiste (1744-1829) French biologist who developed an important model of evolution, based on the
inheritance of acquired characteristics. A major influence on Darwin , though his
scheme was ultimately superseded by
Darwin (1731-1802) and Jean-Baptiste Lamarck (1744-1829).
Lamarcks scheme in particular was very influential (not least on Darwin), but
he failed to perceive:
the importance of
extinction . In his scheme species sometimes