Enderpiercers are unable to be categorized due to their enigmatic properties. First of all, they have no muscles or organs in their "tail", making it essentially useless to their survival; secondly, they have no specialized tissues except a digestive system and a basic neural net, both located in their "head". At first, this information confused scientists, but they figured out that it was a weapon. It's used like a spear, and when it penetrates the meat, it closes its massive tusks around its meal and swallows it. The tail-like part of the body is actually a handle, with the exposed bones acting as grips for the user. It is currently unknown who or what engineered this impressive bioweapon.