Why is "Amazonian languages" trending?

Wikipedia Overview

Amazonian languages is the term used to refer to the indigenous languages of "Greater Amazonia." This area is significantly larger than the Amazon and extends from the Atlantic coast all the way to the Andes, while its southern border is usually said to be the Paraná. The region is inhabited by societies that share many cultural traits but whose languages are characterized by great diversity. There are about 330 extant languages in Greater Amazonia, almost half of which have fewer than 500 speakers. Meanwhile, only Wayuu has greater than 100,000 speakers. Of the 330 total languages, about fifty are isolates, while the remaining ones belong to about 25 different families. Most of the posited families have few members. It is this distribution of many small and historically unrelated speech communities that makes Amazonia one of the most linguistically diverse regions in the world. The precise reasons for this unusual diversity have not yet been conclusively determined, but Amazonian languages seem to have had fewer than 10,000 native speakers even before the invasion of European colonists wrought havoc on the societies by which they were spoken. Despite the large-scale diversity, the long-term contact among many of the languages of Greater Amazonia has created similarities between many neighboring languages that are not genetically related. Most indigenous Amazonian people today are bilingual or even monolingual in English, Spanish, Portuguese, French or Dutch and many Amazonian languages are endangered as a result.