Leg Sections Contacting the Water Surface (IMAGE) American Institute of Physics Caption (a-c) A sequence of the terminal half of a tarsus progressively depressing the water surface is shown. (d-f) A sequence of the whole hind leg progressively depressing the water surface is shown. Credit Jianlin Liu/China University of Petroleum Usage Restrictions This image may be used only with appropriate caption and 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.