"The Uplift Series" is a science fiction series written by David Brin. It explores the concept of uplift, where advanced species help lower species evolve to higher intelligence. The series is set in a universe filled with diverse alien species and complex interstellar politics. The main books in the series include "Sundiver," "Startide Rising," and "The Uplift War." Each novel follows different characters and species, such as the dolphins and humans, as they navigate challenges and conflicts. The series delves into themes of evolution, ethics, and the responsibilities of advanced civilizations.