Start by not buying their shells — the main reason for their threatened status. According to Save the Nautilus ... the creature — a living fossil — may be gone in 50 years.

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 appearing in the fossil ...

Researchers aboard the E/V Nautilus recently discovered four rare Palau nautiluses, ancient cephalopods also known as "living fossils," in the deep waters near the German Channel. The sighting ...

Fossils of them are found all around the world ... We think it’s more likely that ammonites would have had eight arms rather than lots of tentacles like a nautilus, though the shell is more similar to ...