Original: They are most famously used by the South American gauchos, but have been found in excavations of pre-Hispanic settlements, especially in Patagonia, where indigenous peoples used them to catch guanaco and ñandu.
Simplified: They are used by the gauchos in South America today, but have been found in excavations of pre-Hispanic settlements, especially in Patagonia, where indigenous peoples used them to catch guanaco and ñandu.