tell us more about yamana. christina calderon was the last fluent speaker of yamana.scendants can now revitalise this language. can now revitalise this language-— can now revitalise this lanaauae. , . ., language. cultures change, . row, language. cultures change, grow. develon _ language. cultures change, grow, develop and - language. cultures change, grow, develop and evolve, | grow, develop and evolve, languages with that. how important is language to part of the cultural identity? fix, of the cultural identity? language is one of a culture '5 language is one of a culture �*s links to the past, present and future and so when a language disappears, it can sever that time. so christina calderon �*s passing is very significant because she was that link to the past. the ancestral past. so it is very important to preserve languages for future generations. and there is a big difference between extinction because of colonisation and gradual change over time. how many indigenous _ gradual change overtime. how many indigenous languages are there in south america and the rest