1. For example, there was almost no mitten crab output in the Yangtze River in 2000.
2. The crab can even leave the water, cross dry land and enter a new river system.
3. Each guest is entitled to one river crab, besides unlimited sea crabs.
4. The Puyuan Shanghai Restaurant will show how the Chinese eat the river crab, with a specially designed crab banquet featuring 20 options.