Varanus priscus, commonly known as Megalania, was a massive monitor lizard that roamed Australasia during the Pleistocene epoch. It could reach lengths of over 7 meters, making it the largest terrestrial lizard known. Megalania was a formidable predator, likely preying on large mammals and other reptiles. Its habitat included open forests and woodlands.

Varanus priscus, commonly known as the Megalania, was a species of giant monitor lizard believed to have inhabited the Pleistocene epoch in what is now Australia. Its remains have been found primarily in the southeastern parts of Australia, including regions that are now New South Wales and Queensland.

Varanus priscus likely inhabited a range of environments that included open woodland, forests, and possibly grasslands. The climate during the Pleistocene in Australia was variable, with periods of drought and more temperate conditions influencing the landscape.

As a large terrestrial predator, Varanus priscus would have occupied the ecological niche of a top predator. It likely fed on large mammals, reptiles, and other available prey in its environment. Its size and predatory nature suggest it played a significant role in the ecosystem, potentially affecting the population dynamics of other species.