An X-ray-based technique known as PIC mapping shows the size and orientation of fibers at the back (left), the middle (center), and the tip (right) of the enameloid layer of a parrotfish’s biting tooth. The orientation angle of the crystals is color-coded (chart at bottom).
An X-ray-based technique known as PIC mapping shows the size and orientation of fibers at the back (left), the middle (center), and the tip (right) of the enameloid layer of a parrotfish’s biting tooth. The orientation angle of the crystals is color-coded (chart at bottom).