The dynamic changes in mobility networks (IMAGE) Science China Press Caption The structural changes of the mobility networks (G<50) within 24 hours on July 21, 2023 Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.