The '''Brain Boyz''' are the race believed to be an ancient subrace Greenskins that originally created are related to the [[Orks]] and were believed to be a master or ruling caste of their kind who shared a similar physique of their cousin species.^{1 p50-51}Ork legend (such as it is) is generally passed down by the [[Orkoid physiology#Orkoid species|Orkoid speciesRuntherd]]s. They speak of a legendary caste of greenskins who created the Orks of today. This ancient race was extremely intelligent, and held dominion over the Ork castes. They were much smaller than their servants, so they bred the Orks to be as strong and fierce as possible to protect them from predators and invaders.^{2 p7}

Ork legend (such It was believed that this group was the driving force behind their civilisation and were responsible for developing their technology as well as it directing the different castes. There is) is generally passed down by the even some speculation that both Orks and [[Gretchin]]s may have been specialised [[RuntherdMutants|mutant]]s. They speak of a legendary caste of greenskins who that were deliberated created by the Brain Boyz to serve certain duties though it believed that the Orks truth of todaythis would never be known for certain. This ancient race was extremely intelligentRegardless, it is known that the Brain Boyz died out long ago and held dominion over the Ork castesOrks inherited their civilisation to the point that this ruling caste become little more than legend. They were much smaller than their servantsAccording to Orkish beliefs, so they bred the Orks Brain Boyz died from a great plague which ran across many centuries that caused their numbers to be as strong dwindle and fierce as possible eventually led to protect them from predators their extinction. It is believed that this caste was aware of their falling numbers and invaderstook steps to preserve their knowledge by engineering it into the genetic structure of their slaves. This lasting legacy allowed the Orks to retain their high level of technology in later years by way of artificial strands of DNA which contains knowledge imprinted in their metabolism that allowed the Orks to live following the demise of their masters. ^{1 p7p50-51}

A great tragedy must have befallen them, however, for they do not exist today. Some Ork legends tell of a great plague that lasted for many centuries, causing the brainboyz to dwindle and eventually die out altogether. ^{1 2 p7}

*¹:[[Codex Imperialis]] (1993) by [[Rick Priestley]]*² [[Codex: Orks (4th Edition)]]