"Simians" are a race of large ape-like humanoid. They are apparently discriminated against by the rest of the Galactic Federation, which, according to a captured Space Pirate, dubbed P-1, is due to them being primitive compared to most other humanoids. P-1 states that the Chozo, particularly Platinum Chest, had recommended the species to the Federation.
Commander Mauk is a Simian.
|Sentient Species in the Metroid Series|
|Human | Space Pirate | Craftsmen | Kriken | Luminoth|
|Reptilicus | Diamont | Elysian | Ing | "Ancient Bion race"|
|Alimbic | Chozo | N'kren | Phrygisian | Vhozon | Ylla | Jovian | "Machine race" |
"Elfin" | "Simian" | "Ceratopsid" | "Space Dragon"