New research by Dan Everett (University of Manchester) into the language of the Pirahã people of Amazonas, Brazil disputes two prominent linguistic ideas regarding grammar and translation. The Pirahã are intelligent, highly skilled hunters and fishers who speak a language remarkable for the complexity of its verb and sound systems. Yet, the Pirahã language and culture has several features that not known to exist in any other in the world and lacks features that have been assumed to be found in all human groups. The language does not have color words or grammatical devices for putting phrases inside other phrases. They do not have fiction or creation myths, and they have a lack of numbers and counting. Despite 200 years of contact, they have steadfastly refused to learn Portuguese or any other outside language. The unifying feature behind all of these characteristics is a cultural restriction against talking about things that extend beyond personal experience. This restriction counters claims of linguists, such as Noam Chomsky, that grammar is genetically driven system with universal features. Despite the absence of these allegedly universal features, the Pirahã communicate effectively with one another and coordinate simple tasks. Moreover, Pirahã suggests that it is not always possible to translate from one language to another.
In addition, Alf Hornborg's (Lund University) research into the Arawak language family counters the common interpretation that the geographical distribution of languages in Amazonia reflects the past migrations of the inhabitants. At the time of Christopher Columbus, the Arawak language family ranged from Cuba to Bolivia. Yet, geneticists have been unable to find significant correlations between genes and languages in the Amazonia. Moreover, Arawakan languages spoken in different areas show more similarities to their non-Arawakan neighbors than to each other, suggesting that they may derive from an early trade language. As well, Arawak languages are distributed along major rivers and coastlines that served as trade routes, and Arawak societies were dedicated to trade and intermarriage with other groups. But, the dispersed network of Arawak-speaking societies may have caused ethnic wedges between other, more consolidated language families with which they would have engaged in trade and warfare. Finally, there is increased evidence that language shifts were common occurrences among the peoples of Amazonia and were used as a way to signal a change in identity, particularly when entering into alliances, rather than migratory movement.
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