on July 2, 2019, the staff of Lianyungang project Department of China Railway Construction port and Waterway Bureau accidentally found a strange red tailed creature in a pond next to Haibin Avenue, Lianyungang City, Jiangsu Province. It was confirmed by Kefu Guanghui senior engineer of marine ranch of Lianyungang marine and fishery development promotion center that the creature has a history of more than 200 million years Fairy shrimp, a seasonal aquatic crustacean contemporary with dinosaurs. Its eggs can withstand several years of heat and cold. " Fairy shrimp contains Cladocera, but it is not the same as Cladocera. Fairy shrimp is a broad concept, which is a class of arthropods similar to the shape of branchforehead insects, including branchial subphylla, Crustacea, branchipoda and some arthropods under the order Agatha. " The common ones are the abundant year insects in fresh water and the Artemia in sea water. They are called 'fairy shrimp' because of their beautiful appearance and gorgeous color, just like fairies. Wang Jianmin, Liu Caikun &# 8203;&# 8203;&# 8203;&# 8203;&# 8203;&# 8203;