The octopus has a short funnel that sticks out.  The octopus has eight legs which are really called tentacles.  They are used for crawling or picking up things.  The father octopus takes one tentacle and puts it under the mother's skin.  Later the mother lays thousands of eggs and the mother guards the eggs for weeks.  Then she squirts clean water on the eggs and uses her suckers to dust off the dirt on the eggs.  When the babies are born the mother will die and she'll never she her babies ever again.  The octopus, squid, cuttlefish, and nautiluses  are invertebrates  which means that they are  animals without  skeletons although  they may have shells.  Octopus relatives are cephalopods which means head footed creatures.