What is the difference between dolphins and a porpoises?
Dolphins and porpoises are both cetaceans (whales), but belong to different families. The main differences between the dolphin and porpoise families include tooth shape (dolphins’ teeth are conical and porpoises’ are spade- shaped), dorsal fin shape (most dolphins’ are falcate and curve back; most porpoises are triangular), and the structure of the skull (dolphins tend to have a more elongated snout, while porpoises’ snouts are blunt).
