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 ...

WASHINGTON (CN) – Noting that “hundreds of thousands” of nautilus shells are traded yearly, the National Marine Fisheries Service has proposed the chambered nautilus for Endangered Species Act listing ...

(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 ...

A mollusk that is closely related to the squid, cuttlefish and octopus, the chambered nautilus has a cream-colored, spiral-shaped shell adorned with chocolaty-brown stripes. What is intriguing about ...