Apurina

Apurinã language (also known as Ipurina or Pupikaru Sãkire) is exclusively native to Brazil. It is a highly scattered Indigenous language spoken across the northwestern Amazon basin.
The native speakers refer to themselves as the Popukare. They have historically been a migratory, river-based ethnic group, relying heavily on traditional bark canoes (aãta) for traveling between remote forest-access regions.Linguistic Features: Apurinã is highly valued by linguists as an active-stative language with a semi-free word order (most commonly Object-Verb or Verb-Object).Current Status: The language is classified by UNESCO as Definitely Endangered. While the total ethnic Apurinã population is estimated between 7,000 and 10,000 people, fewer than 30% are fluent speakers, with the majority being elders.Threats & Revitalization: The decline of the language began during the 19th-century rubber boom due to forced migrations, disease, and heavy integration with Portuguese-speaking communities. Today, collaborative revitalization programs involving local elders and universities have begun introducing new textbooks and written alphabets into schools to protect the language from extinction.