Porpoises are a group of fully aquatic marine mammals that are sometimes referred to as mereswine, all of which are classified under the family Phocoenidae, parvorder Odontoceti (toothed whales).
Porpoises are a group of fully aquatic marine mammals that are sometimes referred to as mereswine and derpwhales. All porpoises are classified under the family Phocoenidae, parvorder Odontoceti (toothed whales).