In this episode Crab sideways walks in to tell us that there are nearly four thousand species of crab like him coming from far and wide and living in both the water and on land. I'm a Fish is a series of animated short films which showcases sea creatures from all over the world - and under the water. It's quirky and it's fun! Each episode features a different fish, mollusc or crustacean who presents itself - quirks, tricks, fascinating design features and interesting facts about their habitat and how they survive in such deep, dark and sometimes dangerous places!