King is a male bottlenose dolphin born on October 25, 1992 at ZooMarine Algarve, Portugal. His parents are Cher and Sam. After his childhood and part of his youth spent in Portugal, in August 2005 he was definitively transferred to the ZooMarine Torvaianica, near Rome, where he acquired the position of dominant male. Soon, when the females who shared the pool with him came of age, King became a father three times. On September 19, 2012, the first calf was born at ZooMarine, a female later called "Thai", daughter of King and Leah. Two years later, on October 12, 2014, another adult female named Quina gave birth to King's second child, a male later named "Enea".

King's third daughter was born on October 19, 2017, as well as Leah's second daughter, who will later be called "Luna". A few months earlier, in August of that same year, little Enea tragically died following a serious infection of the internal organs.