Endangered languages are those that are at risk of falling out of use, typically because they have few speakers left. This can happen due to various factors, including globalization, cultural assimilation, and the dominance of more widely spoken languages like English or Mandarin. When a language dies, it often takes with it unique cultural knowledge and identity. Efforts to preserve endangered languages include documentation, revitalization programs, and education initiatives. Organizations like UNESCO work to raise awareness and support for these languages, emphasizing their importance in maintaining cultural diversity and heritage. Protecting these languages is crucial for future generations to understand and appreciate their cultural roots.