I have internet again! Such a good feeling. Let's celebrate!
There are two sentient species on Mobius. The most numerous are the demi-human multi-species known collectively as Mobians. Mobians are the half-human, sentient analogues of the planet's fauna. They range in height, depending on what animal analogue they derive from, but on average, Mobians can range from Small (between two and three feet), Medium (between four and five feet), and Large (between six and seven feet). Mobians have a shortened lifespan: physical development is considered complete at the age of sixteen, and the average life expectancy is sixty five years.
Mobians are the most socially stable of the three races. In the less accessible places of the world, Mobian Civilizations have been at a much lower level of development. They range from pre-Industrial to Industrial Age in terms of technology, economy and society.
The other species are Humans. This species are split into two sub-species, known as Overlanders and Bunker Dwellers (this term has fallen out of use; the common reference is now "Human"). Overlanders are the descendants of humans who had existed on the surface for a time, or are descended from humans whose Bunkers became prematurely uninhabitable. A slight degeneration of their genome over time resulted in a lower than average birth rate and lifespan, and a shorter average height.
Humans are descended from those refugees that lived in multi-generational underground structures called Bunkers. Dating from the time of the Cataclysm, these Bunkers sustained their populations many, many centuries until emergence. Genetically, very little variation occurred in isolation, and are considered the benchmark when rating the other two species.
StH:WoD now has a bibliography! This is what I've got so far for my resources. More to come as the universe is expanded upon!
References
Shorto, Russell. Amsterdam. New York: Random House LLC, 2013. Print.
Ingelbien, Raphaël. 'Paradoxes Of National Liberation: Lady Morgan, O'connellism, And The Belgian Revolution'. Éire-Ireland 42.3 (2007): 104-125. Web.
Kishlansky, Mark A, Patrick J Geary, and Patricia O'Brien. Civilization In The West. New York: HarperCollins College Publishers, 1995. Print.
Brucato, Phil, and Stewart Wieck. Mage. Clarkston, GA: White Wolf, 1995. Print.