Phylum Mollusca Part 4: Class Cephalopoda (Squids, Nautiluses, Cuttlefish, and Octopuses)

We now arrive at the most famous of the mollusks, the cephalopods. These include squids, nautiluses, cuttlefish, and the fascinating octopuses. These creatures are the largest and most intelligent invertebrates on Earth. Let's learn all about them!