Et'als (First Contact)

Et'als are a race of advanced alien species whose Kardashev rating is 3.1. They have vocal chords and change colour when angry. They have highly ordered logical, and emphatical minds, and are obsessed with mathematics and statistics.
They are known to be capable of FTL travel with Alcubierre warp drives and to access extra dimensions, which allowed them to peek back and forth in time.
They first communicated humanity through radio signals with artificial voices in 2020.
Category:Scenario: First Contact