The dolphin's intelligence, playfulness, and friendliness, its built-in smile and merry-looking eyes have been a source of interest and enchantment to human beings from the earliest times. It is a common figure in mythology and literature and has been much depicted in art, especially in the posture of its graceful, arched, 30-ft leap. However, not only is it interesting to the eyes but also it is also interesting to the ears.
For years researchers have been trying to answer the famous question, 'can dolphins communicate effectively?' …
