Fig. 2

Photographs showing the basic structure of the hair shaft and the measurements of the medulla of the G1 of camels. The hair in panel d was from the center of the hump and had a moderate 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) with small oval pigment (ov) or streak-like pigment (sg) and different shapes of medulla pattern, panel (a) showed very thin medulla with interrupted pattern, vacuolated structure, and irregular margins (vim), panels (b and d) the medulla showed continuous pattern, amorphous structure (cam) and irregular margins (irm), and panel (c) showed interrupted intruding pattern and amorphous structure (iim)