Cleared Mouse Tibia (IMAGE) California Institute of Technology Caption A mouse tibia that has been rendered transparent with Bone CLARITY. Stem cells appear distributed throughout the bone in red. The ability to see bone stem cell behavior is crucial for testing new osteoporosis treatments. Credit Science Translational Medicine, Greenbaum, Chan, et al; Gradinaru laboratory/Caltech Usage Restrictions WITH IMAGE CREDIT 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.