The baiji, also known as the Yangtze river dolphin, is a freshwater dolphin species native to the Yangtze River in China. It is known for its distinctive long, narrow snout and pale blue-gray skin. The baiji is a critically endangered species, primarily due to habitat loss, pollution, and fishing activities. Efforts to conserve the baiji have been challenging, and it is believed to be functionally extinct, with no confirmed sightings since 2002. Conservationists continue to advocate for the protection of the Yangtze River ecosystem to support any remaining populations and prevent further loss of biodiversity in the region.