Fig. 3

Photographs showing the basic structure of the hair shaft and measurement of the medulla of the G2 camel. The hair in panel d was from the center of the hump and had a dark brown color, while the hair in panels a, b, and c were from the rest of the hump and had a light brown color. Hair cuticle (cu), cortex (co), small oval pigment (ov), streaks like pigment (sg), and different shapes of medulla pattern, panels (a and b) showed interrupted intruding medulla pattern with amorphous structure (iim), panels (c and d) of the medulla showed continuous pattern and amorphous structure with irregular margin (cam) in panel (c) and regular margins were present in panel (d)