Do Your Ears Hang Low? (30 Second Animation) (video) University of Pittsburgh Schools of the Health Sciences Share Print E-Mail Loading video... Caption University of Pittsburgh scientists found that at least 49 genes underlie earlobe attachment. Credit UPMC Usage Restrictions Release is embargoed until 12 p.m., Thursday, Nov. 30, 2017. Share Print E-Mail 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.