The Hyterians are a humanoid species. This species had a natural ability to almost instantly learn any language. Its members became fluent in a language after hearing only a few phrases. They could also quickly decipher cryptographic patterns. Their level of technology was very advanced; they employed a sophisticated form of FTL propulsion unknown to Humans called quantum slipstream drive. They also had particle synthesis technology, an extremely advanced form of holographic replication technology. The Fen Domar nearly destroyed this species, Only ten or twenty thousand were able to escape. They were transported to Earth an colonies.