WASHINGTON— The National Marine Fisheries Service gave Endangered Species Act protection today to the chambered nautilus, which is threatened with extinction due to overharvesting for the ...

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 ...

The Navy reached back into history to find a fitting name for the atomic submarine now abuilding, and finding it, broke from its tidy modern-day custom of naming all submarines after deep-sea fish.

Like a tiny submarine, the chambered nautilus speeds through the ocean on little jets that it creates by sucking in water and spitting it out. However, as ways of movement go, jet propulsion is not ...

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 ...