When I was very little I read (I think in the National Geographic or similar) about a woman from perhaps some Amazonian tribe (or similar) who was taken, taught to speak english and educated, then spoke about her experience and the differences between cultures etc. I've tried searching for this for some time without success, anybody have any idea of where to find this story or maybe it rings a bell to you? I remember finding it fascinating but unfortunately cant' remember enough key details to track it down...