东北虎自然保护区, also known as the Northeast Tiger Nature Reserve, is a protected area located in northeastern China. It was established to conserve the habitat of the Siberian tiger, one of the world's most endangered big cats. The reserve covers a vast area of forests and mountains, providing a safe environment for various wildlife species. The reserve plays a crucial role in biodiversity conservation and ecological research. It aims to restore the population of the Siberian tiger and protect its natural habitat from human activities. Efforts include monitoring tiger movements and implementing anti-poaching measures to ensure the survival of this majestic species.