The great French zoologist Lamarck (1744 1829) was best known for his theory of evolution, called 'soft inheritance', whereby organisms pass down acquired characteristics to their offspring. Originally a soldier, Lamarck later studied medicine and biology. His distinguished career included admission to the French Academy of Sciences (1779), and appointments as Royal Botanist (1781) and as professor of zoology at the Musee Nationale d'Histoire Naturelle in 1793. Acknowledged as the premier authority on invertebrate zoology, he is credited with coining the term 'invertebrates'. In this 1809...