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A character in Twenty Thousand Leagues under the Sea

Who is Professor Pierre Aronnax?

By the Library of Alexandria · 2 minute read · Updated 23 Oct 2026

In short

  • Professor Pierre Aronnax is the French marine biologist telling Jules Verne's Twenty Thousand Leagues under the Sea.
  • He joins a hunt for a supposed sea monster, eager to study an unknown creature.
  • Aboard Captain Nemo's Nautilus, his delight in discovery competes with the knowledge that he is a prisoner.

Who Professor Pierre Aronnax is

Professor Pierre Aronnax is a scholar from the Natural History Museum in Paris and an expert on sea life. His book about the deep sea brings him public attention when reports of a mysterious creature alarm sailors. He joins the warship Abraham Lincoln as a scientific adviser, believing the creature may be an enormous narwhal.

What Professor Pierre Aronnax wants

Aronnax wants to understand the ocean, and he is not sure he wants the supposed monster destroyed. Aboard the Nautilus, he gains the chance to observe sea life at close range. Underwater walks and the submarine's windows bring his scientific interests into direct contact with a world he longs to study.

Professor Pierre Aronnax and the others in the story

Captain Nemo fascinates Aronnax through his knowledge, his submarine, and his unexpected acts of kindness. Yet the captain refuses to let his guests return to land, leaving the professor divided between admiration and captivity.

Conseil, his calm and faithful servant, shares his interest in classifying living things. Ned Land wants escape, keeping the question of freedom before Aronnax amid the discoveries.

Questions

Who is Professor Pierre Aronnax?

He is the French expert on sea life who tells the novel's story.

Why does Aronnax join the hunt?

He accepts an invitation to serve as a scientific adviser and hopes to investigate the mysterious sea creature.

How does Aronnax feel about Captain Nemo?

He admires Nemo's knowledge but struggles with being held aboard his submarine. The captain's kindness and secrecy make him a puzzle to the professor.

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