An emperor shrimp is never spotted on its own. It will always be hitch hiking on the back of a much larger, slow moving species of Holothurian (the scientific term for sea cucumber) or one of the larger species of Nudibranch, such as the Spanish Dancer (Hexibranchus sanguineus). It is more common to see a single emperor shrimp on a host, but if you keep an eye on the host you may spot a second shrimp hitching a ride. When there are two shrimps on a single host, they will often fight over who get