Jean Baptiste Lamarck had eight children and three different wives. His first wife, Marie Rosalie Delaporte, gave birth to six of his children before she died in 1792. They did not marry until she died. His second wife, Charlotte Victoire Reverdy, gave birth to two children, but died two years after the marriage. His third wife, Julie Mallet, died in 1819. Lamarck is said to have had a fourth wife, but this has not been proven. However, he had a deaf son and another clinically insane son. His daughters cared for him on his deathbed and remained poor. Only one living son made good money as an engineer, and he had children every time Lamarck died. Jean Baptiste Lamarck was born on August 1, 1744 in the village of Bazentin-le-Petit in France. He was the youngest of eleven children in a family with a tradition of military service; his father and many of his brothers were soldiers. He served in the military during the Seven Years' War and, at the age of just 17, was awarded bravery for his actions on the battlefield. Jean-Baptiste Lamarck became the Chevalier de Lamarck, or Jean-Baptiste Lamarck, as he was known. Later, when Lamarck retired wounded, he devoted himself to natural history. He initially studied botany with the naturalist Bernard de Jussieu. The product of this decade-long period of research was Lamarck's Flore françoise, a book on the plant life of France that brought its author to the forefront of French naturalists. Lamarck worked at the Jardin des Plantes in Paris, and later at the Muséum national d'Histoire naturelle where he became a professor of zoology. In 1801 he published Système des Animaux sans Vertebres, a milestone in invertebrate taxonomy. It was he who originated the distinction between...... middle of paper...... Lamarck died in Paris on December 28, 1829. He was 85 years, 4 months and 27 days when he died of poverty and poverty. darkness. Lamarck worked at the Jardin des Plantes in Paris, and later at the Muséum national d'Histoire naturelle where he became professor of zoology. Lamarck proposed that organisms: have an innate tendency towards complexity and perfection, have an innate tendency to become simpler as time passes, they inherit all the adaptations they show, they belong to species that never change. Lamarck was born on August 1, 1744, in the village of Bazentin-le-Petit in France. He was the youngest of eleven children in a family with a tradition of military service. Lamarck had eight children and three different wives. He served in the military during the Seven Years' War and, at the age of just 17, was awarded bravery for his actions on the battlefield.