Scores of Australian languages have died with their last fluent speakers.
This is one of the largest populations to speak any Australian language.
Many Australian languages will sometimes be one, and sometimes another, depending on the situation.
It is one of about 10% of Australian languages still being learned by children.
This has then apparently permeated into the Australian language as a whole.
Mpakwithi has the most vowels of any Australian language, with 16-17.
It also is the only Australian language to have nasal vowels.
This is an extremely rare sound in Australian languages.
However, the contrast is very common in Australian languages, where there are usually no fricatives.
Australian languages divide into a dozen or so families.