(IMAGE) Saarland University Caption Saarbrücken computer scientists have developed a system to arrange pictures into a consistent order. It requires no more than a small number of pre-sorted example pictures. The illustration shows different butterflies organized horizontally by color variations and vertically by size. Credit Bernhard Reinert / MPI Usage Restrictions Press photos can be used at no charge. Please consider the terms of use. 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.