In th vast ocan liv many craturs with grat intllctual and physical capacitis. Dolphin is on of thos grat craturs, whos capacitis to think and mov at an astounding rat puzzl thos who study thir bhaviors, Dolphins possss somthing that maks thm diffrnt from all th othr sa craturs. It is not strngth or spd but th siz of thir brains. Dolphins brain is almost th sam siz as that found in th human had. Thy liv for a ling tim. Dolphinsbabis ar born in th watr. Thy can grow up to thr and a half mtrs long. Dolopins us sound to hlp thm find thir way, look for thir food and talk with ach othr. Sound is just lik thir ys and mouths.