[2][3] Aikhenvald (1999)[full citation needed] classifies it among the Western Nawiki Upper Amazonian languages.
Resígaros entrapped by Arana's company were dedicated to the extraction of rubber at the stations of La Sabana and Santa Catalina, which was managed by the Rodriguez brothers.
[4] In 1910, a manager of Arana's company told Roger Casement that the Rodriguez brothers had killed hundreds of indigenous people.
[5] On November 25, 2016, the last female speaker of Resígaro, Rosa Andrade, was brutally murdered in a beheading at the age of 67.
He and his late sister had been preparing a project with the Ministry of Culture to document their language since October 2016, and to update books on grammar and an outdated dictionary made in the 1950s by the Summer Institute of Linguistics, that promoted the translation of the Bible.