Yes, AI can help to preserve endangered languages. With the help of AI technologies like natural language processing and machine learning, efforts can be made to document and digitize endangered languages, making them accessible and providing resources for their preservation. AI can be used to develop tools and systems that can automate the transcription, translation, and analysis of endangered languages, making it easier for linguists and researchers to work with these languages. Additionally, AI can also facilitate the creation of language learning applications that can help people learn and practice endangered languages, thus promoting their usage and revitalization.