In Larry Niven's fictional Known Space universe, the Thrintun (singular Thrint) were a long-extinct species which ruled the galaxy through telepathic mind control. The Thrintun were destroyed about 2 billion years before the human era by the Tnuctip and one of their own devices created to amplify a telepathic suicide command on the galactic scope. The story is partially told in the novella World of Ptavvs and the story Peter Robinson from the book Man-Kzin Wars X. Their original name was unknown before the setting of the novella, but traces of their culture had been discovered and they were simply referred to as the slavers. The Thrint eat and excrete through the same orifice, and have a single faceted eye. Larry Niven Laurence van Cott Niven (born April 30, 1938) is a US science fiction author. ... Known Space is the fictional setting of many of Larry Nivens science fiction stories. ... Mind control (or thought control) has the premise that an outside source can control an individuals thinking, behavior or consciousness (either directly or more subtly). ... The Tnuctipun are a fictional alien species in Larry Nivens Known Space series. ...

The Thrintun settled huge amounts of the galaxy, seeding many planets with basic life forms (created for them by one of their controlled species, the Tnuctipun) to use as food sources. Once the photocycle was established, larger animals known to humans as the Bandersnatchi, and to the Thrintun as whitefoods, were introduced in an example of interstellar cattle-farming. Humans evolved from one such planet, which was abandoned when the Thrintun culture was destroyed, after photosynthesis had started, but before the Bandersnatchi had been moved in. The Tnuctipun are a fictional alien species in Larry Nivens Known Space series. ... The Bandersnatch is a fictional creature mentioned in Lewis Carrolls poem Jabberwocky. ... Leaf. ...

A number of their technologies, in particular their engineered life forms, continue to exist in the human era. Among these are trees that mature containing solid rocket fuel in their trunks, originally used as cheap rocket boosters when planted in orchards, but now evolved to be able to seed themselves across star systems. Discovery of a slaver stasis vault, often containing new and tremendously valuable technologies, was a pastime of many gentlemen-adventurers. This article or section should be merged with Stasis A stasis field is an imaginary phenomenon that is often used in science fiction that slows the passage of time inside it, or stops it entirely. ...

In the 'present day' of the Known Space universe, the Grogs, a race of sessile furry cones which can control animals telepathically, turn out to be the mutated survivors of the Thrintun species.