Twi'leks. Dathomirians. Pau'ans. Tusken Raiders. That death stick guy. No need to reference Wookieepedia or reach for your visual dictionary, I'm talking about the races in the Star Wars films that closely resemble humans in addition to some distinctive physical trait - the 'Trek' aliens, if you will - and whether their occasional presence indicates an unspoken backstory. To what extent should we consider these groups descendents or offshoots of ancient colonial humanity? If language is used as a storytelling tool throughout the saga to illustrate human dominance (Neimodians speak English amongst themselves, Anakin/Watto and Jango/Boba switch between English and Huttese, so on and so forth), are physical resemblances evidence of a similar but unspoken subplot? Do certain alien races in Star Wars have a common origin? More thoughts: Twi'leks, Togruta and Palpatine's senate aid all have human faces, tentacles extending from their heads and bright skin colours. Like humans, Twi'leks are seen enslaved on Tatooine (controlled by nonhumanoid species) and in positions of power on Coruscant. Podracing is said to be impossible for humans, and apart from Anakin all of the species shown participating in the podrace have nonhumanoid physical configurations. Thoughts? Feelings? Epithets? 90's pulp fiction novels? Discuss.