According to Xinhua News Agency, April 5, the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences held a press conference on the 4th to announce that the Sino-American paleontological expert team dominated by the paleontological experts of the institute has found the earliest fossil of dormant animal eggs so far, which will advance the origin time of animals known to the scientific community to 632 million years ago. That's more than 50 million years earlier than the previously known 580 million years ago