This 3D illustration of a modulus map of bone was produced using atomic force microscope (AFM) data on the nanomechanical spatial heterogeneity of bone stiffness. Simulations using this data predict markedly different biomechanical properties compared with a uniform material, which may serve as a design consideration for biologically inspired materials technologies. See Tai, K., M. Dao, S. Suresh, A. Palazoglu, and C. Ortiz. “Nanoscale Heterogeneity Promotes Energy Dissipation in Bone.” Nature Materials 6 (June 2007): 454-462. (Image courtesy of Prof. Christine Ortiz.)