<i>Schistocerca americana</i> Grasshopper (IMAGE) Arizona State University Caption ASU and Virginia Tech researchers have discovered that grasshoppers, like this Schistocerca americana, adjust their cardiovascular and respiratory activity in response to gravity. Credit Jon Harrison Usage Restrictions with photo credit License Licensed 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.