The Irathients are one of the Votan races.
Irathients have broad and flat nasal bridges, reddish skin and often have red hair. Irathients are naturally athletic and have intense combat skills. Irathients have livers. Irathients are capable of inter-breeding with humans but it requires some assistance as Irathients are triploid, receiving one chromosome from the father and two from the mother. (Defiance Wiki:Production Images, Intel:The Big Hero, Intel:Making History)
The Irathients are the most common of the Votan races living on Earth. They are a proud, tribal people but are often perceived as feral due in part to their love for the natural world and apparent aggression. Irathient society is centered in their spiritual beliefs and they often divide themselves into tribes. Their spiritual beliefs are made up of three idealized parts of the body: the Gyabire (the brain) the seat of intellect; the Gyagbe (the heart) the source of vitality; and he Gyargye (the stomach) the house of emotion. (Loading screen, Defiance Wiki:Production Images)
Of all the Votan races to have immigrated to Earth, the Irathients have adapted best, using their affinity with nature and tribal warfare tactics to thrive in the most dangerous frontiers of Earth. Irathients will greet one another by extending out their arms and saying "eseneziri", which translates to "Without concealed weapons or hidden agendas". They prefer to keep to themselves but share a bond with the Liberata and the Sensoth, as they evolved on the same planet. They have poor relations with the Castithans and view Humans as crude and lacking respect for the environment. (Defiance Wiki:Production Images)
Irathients evolved on the planet Irath along with the Liberata and the Sensoth and once were very technologically advanced until they abandoned it and went back to a more nomadic lifestyle. Around 4,000 BCE Castithan raiding parties arrived on Irath to round up Sensoths to be used as slave labor. The Irathients took it upon themselves to defend the Sensoth but their primitive weapons were no match. Many Irathients that fought were put into caves and killed with chlorine gas; this event became known as the Great Diaspora. When the Arks were being finished Irathients engaged in tribal combat and religious trials to determine who would go aboard the ships. In November 2030 Irathient settlers moved into the area that would become the town of Defiance. In 2038 a disease spread through the Irathient population in Defiance and Mayor Nicolette Riordon and the town council decided on mandatory vaccinations for the young. This led to violence and the eventually exodus of most of the Irathients from town.  (Inside Defiance: Episode 9, If I Ever Leave This World Alive, New Book Reveals Secrets of a Dying World, World of 2047: Timeline of the Future, Down in the Ground Where the Dead Men Go)
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- Irathients are one of the playable races in the Defiance game.