Cephalopods like octopus, squid, and cuttlefish seem to be as alien as any alien creature from a sci-fi movie, and it's fun ...

We named him Squirt – not because he was the smallest of the 16 cuttlefish in the pool, but because anyone with the audacity ...

How can the soft bodies of coleoid cephalopods so aptly hide in their environment? Why must they? What cells and specialized organs make such crypsis possible for one of the older evolutionary ...

The many chambers of their shells likely helped these cephalopods glide through the planet’s warm, shallow seas. A thin, tubelike structure called a siphuncle pumped air through the interior ...

Ammonites were shelled cephalopods that died out about 66 million years ago. Fossils of them are found all around the world, sometimes in very large concentrations. The often tightly wound shells of ...

Unlike an octopus’s eight tentacles, a nautilus features anywhere from 50 to over ... the Nautilus vessel isn’t directly named for the cephalopods, but in honor of Captain Nemo’s deepsea ...