Eel Animals living in the tropics have small scales, can breathe in the air, textures that tend to be slippery, have a long tail fin and have no ribs. Eel into the fish group, so eel is consumed by the community. Eel themselves have many nutrients, as well as fish. High protein content, minerals, vitamins are also fat in the eel as well as the content in the benefits of fish, because the eel is part of the type of fish.