First off a quick link on avatar and anthropology: a brief article on anthropologist (and Melanesianist!) Nancy Lutkehaus helping plan the Navi.
Ok now on the meat of the post. I have not followed discussion of Avatar on an site other than our own, but as I think more about it, the less I am convinced that we get a sense of Navi society. Does anyone remember actually seeing them eat? There must have been some farming. And although I remember a few shots of kids (running away, mostly) there wasn’t much on that. In fact we miss the main facts of how Navi society reproduced itself. Am I wrong here?