Dolphins and Porpoises: What’s the Difference?

Are dolphins and porpoises different from each other? 

Both dolphins and porpoises are highly intelligent marine mammals of the group Odontocetes (ie. toothed whales). They have different feeding habits - dolphins are cooperative feeders meanwhile porpoises are not known to use such strategies. Porpoises have a rounded snout, spade-shaped teeth and short, triangular dorsal and pectoral fins. Dolphins have a pointed, elongated snout, conical teeth and generally large, curved, dorsal fins. 

How are dolphins and porpoises similar? 

Dolphins and porpoises hunt by echolocation, as they create high-frequency sound waves and listen for the sound to bounce off their prey to pinpoint its location. Both their diets consist of fish, cephalopods and crustaceans. They also have similar habitats, other than 3 dolphin species that are found in freshwater.