Spencer's goanna find, including highly venomous snakes, small mammals, small lizards, eggs, and carrion (dead animals), and is able to digest anything it eats. When threatened, "V. spenceri" hisses loudly, distends its throat and whips its aggressor with its muscular tail. "Varanus spenceri" lives in black soil plains with no trees; so Spencer's goanna is the only Australian monitor that does not readily climb although juvenile animals will climb given the opportunity. Clutch size of Spencer's monitor generally ranges between 11 and 30 eggs. "Varanus ingrami" , is an invalid name (a junior synonym) for this species. Spencer's goanna Spencer's goanna or
Sand goanna sand goanna does consume smaller species of monitors: Ackies, rock monitors and other dwarf species are often found and eaten. It is common to see a Gould's disturbing rock piles in an attempt to flush out any "Odatria". It lays its eggs in termite mounds to protect them from the harsh desert climate. Like all goannas and snakes the sand monitor has a forked tongue, with which it "tastes" the air. Scents are picked up on each side of the fork which, when retracted, brushes over an area in the mouth called the Jacobson's organ, which identifies on which side