Fig. 4From: Magnetic resonance imaging and computed tomography as tools for the investigation of sperm whale (Physeter macrocephalus) teeth and eyeExamples of ZTE images in tooth A (see Fig. 1) along various axis (axial and sagittal). Axial at top left. Three sagittal slice planes are shown. Note that layering is visible in all examples, but it is not possible to determinate the exact numbersBack to article page