Common Bottlenose Dolphin

The common bottlenose dolphin is a robust grey dolphin with a short, well-defined beak and a tall, curved dorsal fin. Size varies geographically, with adults approximately 2–4m long and 150–650kg. It occurs in temperate and tropical seas worldwide, using coastal bays and continental-shelf waters as well as deeper offshore habitat. (Wikipedia, general species account)

It eats fish, squid and crustaceans, locating prey with echolocation and employing varied individual or cooperative hunting techniques. Common bottlenose dolphins live in flexible social groups whose membership changes through time, and they communicate with whistles and pulsed sounds. They frequently ride bow waves and may be visible close to shore in suitable coastal habitat. (Wikipedia, general species account)