Other names: Cape Monitor, Rock Monitor and Southern Savanna Monitor Physical Description: Monitor lizards are generally large lizards recognized for their elongate bodies, strong limbs, muscular tails and robust claws. The white-throated monitor is the second largest monitor found in Africa, capable of growing to 6 feet in length and can . The white-throated monitor spends its day patrolling the savanna, seeking out small animals with its scent-detecting tongue. During the hottest part of the day, it shades itself under tree roots or uses its strong claws to dig out a resting den. The white throated monitor, once believed to be a subspecies of savannahs, will grow larger and quicker than savannah monitors, with two inches of growth a month and an averag e top size of feet.