This undated photo combo provided by the journal Cell and taken with a bright field camera, shows a mouse with its skin removed during various stages of examination. In a study released by the journal Cell on Thursday, July 31, 2014, researchers describe a way to make see-through mice and rats, a step that should help them study fine details of anatomy for basic research. The center image shows the mouse after one week of the process. The image at right shows the latter stage, showing the brain of the mouse with it's skull removed. (AP Photo/Cell, Yang et al)
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