The Savannah monitor is a medium-sized species of monitor lizard native to Africa. They are robust creatures, with powerful limbs for digging, powerful jaws and blunt, peglike teeth. The skin coloration pattern varies according to the local habitat substrate. They are usually dark grey with lighter tan or yellowish patterns. The body scales are large, usually less than 100 scales around midbody, a partly laterally compressed tail with a double dorsal ridge and nostrils equidistant from the eyes and the tip of the snout. [SOURCE: ANIMALIA]