The Perentie (Varanus giganteus) is the largest monitor species in Australia, with a typical snout-vent length of around 70-90cm in adults. The tail can add approximately another 1.3 times the snout-vent length in total length. This species is characterized by its long neck and sharp angular brow, distinguishing it from other large terrestrial Australian monitors.

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The typical coloration of Perentie is overall black/brown with a cream/white underside and spots on the body and tail. They also have a dark net-like pattern on the neck. Some individuals may have flecks or reddish-brown markings in their back pattern. Juveniles tend to display more pronounced coloration compared to adults.

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Perentie has a distribution that covers central Queensland, central Australia (Northern Territory and South Australia), and extends to the Pilbara coast of Western Australia. They are associated with rocky outcrops, ranges, and gorges, where they utilize caves and crevices as shelter in the arid interior. However, they can also be found in sandy or grassland habitats across their wide range.

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Keeping Perentie as pets can be limited by the space and food requirements they need, so careful consideration should be given before obtaining one. Once settled in, they can become well habituated to human interaction and presence. Tong and hand feeding can be easily established as they mature, although caution should be exercised with animals that have a strong feeding response. Perentie is known to be one of the most rewarding species to keep in terms of interaction.

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Husbandry for Perentie is not overly difficult, apart from the space requirements mentioned above.

Enclosure size: For adult Perenties, a large enclosure is essential. Outdoor pits or aviaries are preferred, with a size of at least 6x6m being suitable. Larger enclosures are even better to provide ample space.

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Substrate and furnishings: Sand substrate with good drainage is recommended for outdoor enclosures. Providing rock piles and hollows as hides is important. Large plastic boxes with hay can also be used as additional housing, especially during winter.

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Temperatures and lighting: Adequate UVB lighting is essential. A basking hot spot under a bright lamp directed onto a rock or tiled surface is ideal, with temperatures ranging from 50-65°C for indoor enclosures. Outdoor enclosures may require additional heating, but Perenties generally tolerate winter temperatures well in most regions.

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Humidity: Perentie is a typically arid species, so humidity levels should be kept on the lower end. Outdoor enclosures in tropical regions have not presented any issues regarding humidity.

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Feeding: Juvenile Perenties should be fed crickets, wood roaches, and insects, with regular dusting of calcium powder and vitamins. As adults, they should be offered a variety of whole prey items such as rats, mice, quail, or similar feeders. This can be supplemented with items like chicken legs or wings, although their fat content and lower vitamin levels should be considered. Eggs and occasional fish can also be included in their diet for a well-balanced nutrition.

 

Life span: Varanus giganteus has a typical recorded lifespan of 20-30 years.