Ceiling Fly (IMAGE) Penn State Caption Researchers studying one of the least understood aerobatic maneuvers performed by flying insects, and who call their investigation the "most complete exploration of fly landing maneuvers" to date, report that blue bottle flies that land upside down on ceilings use a more complex series of behaviors than thought. Credit Bo Cheng, Penn State Usage Restrictions non commercial use only 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.