Micro computed tomography (μCT), a 3D imaging technique that uses x–rays to see inside an object, provides a non–invasive way of inspecting anatomical structures in organisms. Despite μCT scanners being commercially available since the 1990s, only a few studies have documented the use of μCT in ecological studies. Combined with 3D reconstruction techniques, use of μCT has the potential to relate morphology and behavior in complex systems such as fish jaws. In this study, μCT is being newly applied to investigate variation within a sample population of a potamodromous piscivore. In this study, samples are scanned, and individual parts of the piscivores’ jaws isolated using image segmenting software. The isolated parts are then analyzed for individual variation. Although the use of μCT is relatively new, it has huge potential in ecological studies and remains a niche worth exploring.