What fish are vertebrates?

All fish are vertebrates. Vertebrates are animals that have a backbone or spinal column. Fish are a diverse group of animals that includes bony fish, cartilaginous fish, and jawless fish. Bony fish are the most common type of fish and include species like tuna, salmon, and goldfish. Cartilaginous fish have skeletons made of cartilage and include species like sharks, rays, and skates. Jawless fish are the most primitive type of fish and include species like hagfish and lampreys.