The term "ratfish" refers to a type of deep-sea fish that has a narrow body, a long tail, and large eyes. This fish is also known by other names, such as chimaera, ghost shark, rabbit fish, and spookfish. Some species of ratfish have a venomous spine, which can cause painful injuries to humans. The ratfish is a member of the Chimaeriformes family and can be found in oceans worldwide. Despite its unappealing appearance, some types of ratfish are eaten in certain parts of the world and are considered a delicacy. With several names used to refer to this unique species, ratfish is just one of many labels that have been given to this deep-sea creature.