Fishes in Tesselation (IMAGE) University of Wisconsin-Madison Caption Simple shapes, such as these fish, can tile large surfaces if their geometry allows for symmetry. The edges each tessellating fish share with their surroundings are identical from fish to fish. Similarly, assemblies of collagen protein "tiles" can be achieved when the chemical and physical environments of every tile are designed to be identical, allowing scientists to produce synthetic collagen nanofibers. Credit Submitted University of Wisconsin-Madison 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.