The Aché
(also known by the hostile
names Guayakí, Guaiaqui,
Guoyagui, Guayaki, which literally mean
rabid or ferocious rats; and the alternate
spellings Ache or Axe meaning in their
language human or person) are an indigenous
people who lived in the subtropical
forest of Eastern Paraguay as fulltime
hunters until the 1970s, when they were
confined to reservations. They have
been the subject of anthropological
research by Pierre Clastres.