The Zaranites are a playable species. They were conquered by humans who had fled Earth after World War III. They were able to overcome this, regaining their own independence. Prior to this, their history was one of peaceful co-existence. War and conflict were unknown to them.
Upon learning of their negative history with humans, some experts were surprised by how positive the interactions were between the Federation and the Zaranites. As a result of these positive interactions, they were quickly offered membership in the Federation and they accepted.
They are carbon dioxide breathers and always wear a heavy metallic mask with twin air hoses leading to a small environmental backpack, when in class M environments. They also tend to prefer to wear heavy gray robes in public. They are hairless with shiny light brown skin.
Since becoming members of the Federation they have taken a very active role with both Starfleet and the Federation itself. They tend to be very hard working and self reliant. They are capable of withstanding incredible amounts of stress with no adverse side affects. And they have an unusual love of hunting in all its forms.
As a result they can be a very unusual, yet challenging species to sim for — one that has done its share to promote the ideals of the Federation.