|Diberehz, an Aokian Male (2271)|
|Kagalra, an Aokian Female (2271)|
Around 2271, the Aokians had forehead ridges but a scientist named Qiral accidentally released a mutation that removed the ridges and instead added a massive permanent scar to the torso. The Aokians were not pleased with this and burnt down his house, killing him in the process. Due to this they never got their ridges back. However Aokians that were off world managed to keep their ridges.