Broods are quite unique in anatomy, their blood is a glowing bright acid that can nearly melt weaker metals. Through actual study, upon death broods will either violently mutate or explode into like a acid bomb. Due to their eternal life, they find fun in raping, murdering, cannibalizing, and torturing each other. Another aspect is the fact broodmother claws are made of the same material as equine hooves, but with joints.