Alsuran (Frontier)

The Alsurans are a humanoid species that were dominated by the Fen Domar. This species has a natural ability to almost instantly learn any language. Its members become fluent in a language after hearing only a few phrases. They can also quickly decipher cryptographic patterns. Only ten or twenty thousand were able to escape their conquest. They journeyed to Earth, and instantly became fluent in the human language.