The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...
A cross section of a chambered nautilus shell shows the newly defined shape, the "soft cell," repeating outward in a spiral. FlamingPumpkin via Getty Images When humans cover a space using tiles of ...
(CN) – The National Oceanic and Atmospheric Administration has listed the chambered nautilus as threatened under the Endangered Species Act, citing demand for its shells as the main threat. “Chambered ...
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