Before HaloVery little information about the Unggoy prior to the activation of the Halo array survives to the modern era, but it is known that theirs was a Tier 4 society. However, they never became spacefaring due to a number of factors. Their species' rapid breeding cycle led to a population crisis on their homeworld of Balaho, which was reflected in and compounded by the near complete collapse of the planet's biosphere due to global industrialization. Balaho's atmosphere and...