Professor Aronnax is a fictional character from Jules Verne's novel, "Twenty Thousand Leagues Under the Sea." He is a French marine biologist and the narrator of the story, known for his intelligence and curiosity about the ocean. Aronnax is captured by Captain Nemo aboard the submarine Nautilus and embarks on an extraordinary underwater adventure. Throughout the novel, Aronnax explores various marine environments and encounters unique sea creatures. His scientific knowledge and observations provide readers with insights into the mysteries of the ocean. Aronnax's character represents the spirit of exploration and the quest for knowledge in the face of the unknown.