Linguistically, the Mura family is typified by agglutinativity, by paucity of phonemes (Pirahã has just 11 compared to English's 40-odd), and by grammatical tone.
The Mura language is the eponymous member of this language family; however, most Mura languages have died due to the usage of Portuguese in Brazil, mainly because they were spoken by so few people anyway: the Pirahã language is now spoken by just 150 people in eight villages.
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