Ephraim
Ephraim was a  whose reproduction was the subject of the film The Tardigrade in Space. 

According to the film, after laying her eggs aboard the , she witnessed various events in the starship's history, including a discussion between James T. Kirk, Leonard McCoy, and Khan Noonien Singh. She encountered a DOT-7 repair drone named Dot, which pursued her until 2285, at which point Dot realized Ephraim's purpose aboard the ship, and switched over to helping her. ()

Tardigrades