Sundiver

Sundiver is a 1980 science fiction novel by American writer David Brin. It is the first book of his first Uplift trilogy, followed by Startide Rising in 1983 and The Uplift War in 1987.

==Background== The Five Galaxies are filled with alien races, all of whom were "uplifted" into sentience by another race through the use of directed breeding. As "payment" for being made sentient, the uplifted races are subservient to their uplifters for a period of time. All existing races have reached sentience through this process, and follow a common evolution in which the races become free of their uplifters, enter a period of independent power, and then fade and eventually disappear.