> They are chordates (they have a spinal cord, just no backbone for it) None of the cartiligenous fish have backbones. Nor any other bones. Coelacanths have b

> They are chordates (they have a spinal cord, just no backbone for it) None of the cartiligenous fish have backbones. Nor any other bones. Coelacanths have backbone-functioning cartilige.