![]() ![]() ![]() But the majority of molluscs are terrestrial organisms: 80% of all molluscs are gastropods (snails, slugs etc.) One of the main characteristics of the mollusc is the existence of a mantle cavity. Almost one quarter (23%) of all marine animals are molluscs. A mollusc, which is a phylum of the invertebrate animals.An invertebrate meaning that it does not possess a spine. ![]() The truth is that the nautilus looks very different from the rest of the cephalopods (mainly because of its shell) and it is impressive how this slower and not-so-bright cephalopod has managed to survive for so many millions of years. This cephalopod, however, does not deserve its anonymity: if it could talk, it would have thousands of stories to tell… Nautiluses have been around even before dinosaurs! In fact, according to paleontologists, the nautilus appeared 265 millions years before dinosaurs roamed the earth. Even if your knowledge is restricted to what you have read on a seafood restaurant’s menu, you are all more or less familiar with the octopus, the squid, and the cuttlefish.īut the fourth animal that completes the class of cephalopods is most probably an alien to you. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |