"The incredible complexity of a mammalian eye (in this case from a mouse) is captured here. Each color represents a different type of cell. In total, there are nearly 70 different cell types, including the retina’s many rings and the peach-colored muscle cells clustered on the left. Image courtesy of Bryan William Jones and Robert E. Marc, University of Utah. Part of the exhibit Life:Magnified by ASCB and NIGMS."