KnowraÉtienne Geoffroy Saint-HilaireLinked fromLinked fromThe 2 pages that link to Étienne Geoffroy Saint-Hilaire, each with the reason it gives.All 2Related 2Jean-Baptiste LamarckRelated: His debates with Cuvier shared Lamarck’s challenge to fixed species, though not his theory.SirenomeliaRelated: His work helped shape the study and naming of congenital developmental anomalies.