What Are 3 Interesting Facts About Dolphins?
What Are 3 Interesting Facts About Dolphins? There are currently 42 species of dolphins and seven species of porpoises. Dolphins are marine mammals. … A dolphin pregnancy last between nine and 16 months. … Dolphins eat fish, squid and crustaceans. … All dolphins have conical-shaped teeth. … The orca (killer whale) is the largest dolphin.