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 ...

Amanda Kooser covers the quirky side of science and space. A nautilus caught the eye of researchers on board the E/V Nautilus ship during an expedition near ... [+] Palau. Here's a chance to ...