One of the French scientists who influenced Grant was the anatomist Étienne Geoffroy Saint-Hilaire, whose ideas on the unity of various animal body plans and the homology of certain anatomical structures would be widely influential and lead to intense debate with his colleague Georges Cuvier.
Jedan od francuskih znanstvenika koji je utjecao na Granta bio je anatom Étienne Geoffroy Saint-Hilaire čije će ideje o jedinstvu raznih shema životinjskog tijela i homologije određenih anatomskih struktura biti široko utjecajne i koje će voditi do intezivne debate s njegovim kolegom Georgesom Cuvierom.