The Yangtze River crab, also known as the Chinese mitten crab, is a species native to the Yangtze River basin in China. It is recognized for its distinctive furry claws and is typically found in freshwater environments. This crab has a dark green to brown shell and can grow up to 10 centimeters in width. These crabs are an important part of local cuisine, especially in Shanghai, where they are considered a delicacy. They are usually harvested in the autumn months when they are at their most flavorful. The Yangtze River crab has also become an invasive species in other regions, impacting local ecosystems.