It is called a chambered nautilus because it’s born with four internally connected chambers that it adds to as it grows. Over its lifespan, a nautilus can develop 30 or more chambers, all spun in a perfect logarithmic spiral.

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Look for the nautilus exhibit in the Tropical Gallery on Level 1. Nautilus species have been around since the time of the dinosaurs, earning them the nickname of "living fossils."

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