Movie 1 (VIDEO) Tokyo Medical and Dental University This video is under embargo. Please login to access this video. Caption Time-lapse movies of the polarized fluorescence imaging during the first cleavage of a starfish embryo expressing POLArIS that specifically binds to F-actin in a rotationally constrained manner (the same egg as in Fig. 2A). Magenta parts in the left movie indicate horizontally aligned actin filaments and the green parts for those of actin filaments that are vertically aligned. Right, the same movie with enhanced contrast. Credit Department of Neuroanatomy and Cellular Neurobiology,TMDU Usage Restrictions None 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.