There are many wetlands in China and some of them are the world's important wetlands. The Chinese Yellow Sea Wetlands are among them. They are in Yancheng, Jiangsu Province, the east of China. They are homes for many different kinds of birds and animals. The world's largest Milu Deer Nature Reserve is in them. More than 700 milu deer live freely there. There are not many red-crowned cranes in the world, but every winter you can see some in the Red-Crowned Cranes Nature Reserve in the Yellow Sea Wetlands. The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife. Luckily, more and more people are beginning to realize the importance of wetlands and wildlife. Every year, on February 2, people hold many activities to tell more about wetlands. The World Wetlands Day is on  _  .
April 22 June 25 February 2 March 22