Whose work first showed that the nautilus has a chambered shell for buoyancy?
Quick Answer
Early naturalists and anatomists described the nautilus shell as chambered and used for flotation. The animal adjusts gas and fluid in those chambers to control depth.
The Full Story
The chambered shell of the nautilus was described by early naturalists and became a classic example in marine biology. Scientists learned that the empty chambers help control buoyancy, allowing the animal to move up and down in the water column. The living chamber houses the animal’s body, while the older chambers remain behind. Nautiluses are often called living fossils because their lineage is ancient and their form has changed relatively little over time.
Key Facts
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"The ancient ocean creature with a built-in submarine shell"
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