The Piaroa people, known among themselves as the Huottüja or De'aruhua, are a pre-Columbian South American indigenous ethnic group of the middle Orinoco Basin in present-day Colombia and Venezuela, living in an area larger than Belgium, roughly circumscribed by the Suapure, Parguaza, the Ventuari, the Manapiare and the right bank of the Orinoco. Wikipedia