Chimps Sucking Juice through a Straw (VIDEO) PLOS This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption This video shows the "dipping" technique performed by chimpanzee Ayumu. Note that he uses his mouth to insert the tube into the bottle. In form, his technique is identical to the "straw-sucking" technique. However, instead of leaving the tube in and retrieving the juice via sucking, he removes the tube and licks the tip. Credit Citation: Yamamoto S, Humle T, Tanaka M (2013) Basis for Cumulative Cultural Evolution in Chimpanzees: Social Learning of a More Efficient Tool-Use Technique. <i>PLOS ONE</i> 8(1): e55768. doi:10.1371/journal.pone.0055768. Usage Restrictions With credit to source 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.