The Formosan languages are the languages of the indigenous peoples of Taiwan, all of which are Austronesian. The Taiwanese indigenous peoples recognized by the government are about 2.3% of the island's population. However, only 35% speak their ancestral language, due to centuries of language shift. Of the approximately 26 languages of the Taiwanese indigenous peoples, at least ten are extinct, another four (perhaps five) are moribund, and all others are to some degree endangered.