This analysis of Juan Darien written by Horacio Quiroga proposes the category of animal as a significant element inside of the Latin American Literature. The plot of this story is about the adoption of an orphan tiger by a single mother. This plot is analysed according to the biopolitic (Foucault), the internal enemy (Torrano) and the people figuration and the animal. This action generates negative consequences, like the persecution of the animal. This adoption criticques the limits of humanity, nature, culture, and language. The animal biopolitical persecution deploys a diverse range of mechanisms, the archive and his relation to power, sovereign power and the internal enemy condition.