Species 025 is a humanoid species, but similar to the quarians from Mass Effect they never go anywhere without their suits which they need for survival so we don't really know what these people look like.

Appears to be a highly advanced race, wonder if I should make them the male versions of Species 025, that'd be cool . But, since you can't make different male and female versions of the same creature in Spore in-game that'd be kinda dumb. Guess I was inspired by BioShock and HALO for this one :)