FIB-SEM (VIDEO) Howard Hughes Medical Institute This video is under embargo. Please login to access this video. Caption This movie shows a 3D reconstruction of a zebrafish scale iridophore using FIB-SEM, with a high magnification view of the cell’s ultrastructure and the ~20-30 nm thick crystals running in parallel and aligned with the cell’s long axis (highlighted by pseudo coloring in blue and gray; the cell’s nucleus is pseudo colored red). Credit Gur et al. Usage Restrictions Please use caption and credit. License Original 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.