Jean Baptiste Pierre Antoine de Monet Lamarck, chevalier de , 1744-1829, French naturalist. He is noted for his study and classification of invertebrates and for his introduction of evolutionary theories. After varied careers he turned his attention to botany, and recognition of his skill followed upon publication of Flore françoise (3 vol., 1778). He was elected to the Academy of Sciences, and, aided by Buffon, he traveled over Europe, under the title of royal botanist, visiting museums and collecting material for the museum of the academy. From 1793 he was professor of zoology at...
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