Cephalopops

The name cephalopod comes from the Greek, meaning ‘head-feet’ - which pretty well sums up the appearance of squid, cuttlefish and octopuses! The most active of all molluscs, cephalopods generally don’t have external shells, but they do have an ink sac from which they squirt a thick black ink to help distract predators. (The exception is a rarely seen sub-species of cephalopod, the nautilus, which has an external shell and doesn’t have an ink sac).