Are Sharks Tetrapods? Are All Tetrapods Fish?
Sharks are not tetrapods. Tetrapods are a group of vertebrate animals characterized by having four limbs or, in some cases, descending from animals with four limbs. Sharks, on the other hand, belong to a different group of vertebrates called cartilaginous fish or chondrichthyes. Sharks are characterized by their cartilaginous skeletons, gills for respiration, and typically …