The Inaira are a diverse aquatic species with physical traits varying widely between Inairan from different regions of their planet Wyuna. Having adapted to living in high pressure environments they’re typically very resilient, and have a high strength to mass ratio. Another adaptation of living at depth is their ability to regulate internal pressure by constricting cells throughout their body, reducing blood flow and hardening their dermis.
The Inairan have a unique neurological system. Instead of a central neural mass, the brain is distributed along the length of the spinal column. This is beneficial in both pressure regulation and oxygen distribution in low oxygen environments. Another adaptation to hypoxia is self-induced suspended animation, by which the Inairan can survive in near vacuum conditions for months. In many ways the Inairan are perfectly suited for space travel.
The Inairan homeworld of Wyuna is more than 98% surface water, with many of the oceans reaching depths of over 8,000 kilometers. The entire population, of nearly 15 billion people, live below the surface of this endless ocean in vast cities that expand both outward and down into the depths.
Inairan civilization experienced explosive population and technological growth in a fairly short period of time, do mainly to having an unlimited source of energy. The vast majority of Inairan cities and industry are powered by geothermal vents that line the ocean floors. Unhindered by land or energy scarcity, Inairan culture was able to focus on scientific and technological advancement.
Most of Inairan technology is biological, powered by chemical fuel cells. Their computer systems, for example, are organic structures comprised of specifically designed synthetic neural cells. This technology has a number of benefits. Being organic, these systems are self-healing and able to recover from significant damage. As well they can be rapidly reproduced with minimal resources as they are grown and not manufactured.
Roughly 5000 years ago Wyuna was a very different planet, with 30% of it’s water trapped at the poles in massive glaciers. The Inairan civilization occupied both the oceans and the land. Then a massive volcanic eruption obliterated the planets largest land mass killing billions.
The eruption was so powerful that it sent debris into space and burned off much of the planets atmosphere. The increased solar radiation and thick planet-wide ash cloud resulted in an accelerated greenhouse effect. Within 120 years the ice caps were entirely melted turning the planet into a vast ocean, with the only visible land being the still active volcano.
The ash and chemicals released by the volcano made the air and epipelagic zone of the oceans uninhabitable. The global catastrophe however proved to be a boon for Inairan civilization. Fear of extinction fueled a scientific revolution, and over the next 1800 years they experienced explosive technological growth.
However, despite the ability to expand into new oceanic territories, the smoldering volcano was still spewing out millions of tons of toxins that continued to pollute deeper into the oceans. The Inairan believed that in order to survive they would need to relocate to a new planet. Within 500 years they had highly advanced ships, and near light speed technology. 100 years after that, they had begun colonizing other planets.
The downside to the Inairan’s rapid technological growth is that their social advancement has not kept pace. Inairan social structure is based on a cast system, with the upper casts living in a near utopian society, and lower casts being little more than slaves. The enormous inequality between casts results in constant civil unrest and frequent, albeit short lived, rebellions. There are no negotiation as the ruling classes consider genocide the fastest best solution to quell uprisings.
Being weak in military technologies the Inaira have very little interaction with other races. And while they are represented in Parceil, there is marked tension between them and the Cysti.