360 (2000 ISA). Most are monolingual. Ethnic population: 1,500 (1995 SIL). Pirahã small group, Múra larger.
Amazonas, along Maici and Autaces rivers.
SOV; whistle speech reported
Vigorous. Most men understand Portuguese [por]; women understand very little and never use it to express themselves. The Múra have mostly shifted to Portuguese (Crevels 2007).
In 1960s the population dwindled to 80 due to high infant mortality, death of mothers giving birth, and disease. Modern medicine helped population growth.