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 ...

any prehistoric naturalist would be hard-pressed to tell them from the real thing. Each year, more extinct cephalopods crop up. Aren't you glad at least our beloved chambered nautilus isn't among ...

The chambered nautilus is a sea creature that belongs in ... And it’s always useful to check things out in the real world.

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 ...