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Desert Iguana

Dipsosaurus dorsalis

A highly active, herbivorous desert iguana from North America. Requires a wide desert setup (120x60x60 cm) with deep dry sand for burrowing, immense basking heat, intense UVB, and a primarily plant-based diet.

Taxonomy
Class:Squamata
Order:Squamata
Family:Iguanidae
Genus:Dipsosaurus
Species:Dipsosaurus dorsalis

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Environment

Terrestrial

Humidity

10 - 30 %

Day temperature

32 - 35 °C

Ambient temperature

35 °C

Night temperature

20 - 22 °C

Basking spot

20 - 22 °C

Adult size

15.4 cm

Minimum enclosure

>= 300 L

UVB

High

Species description

Geographical Origin and Habitat: Native to the arid regions of the southwestern United States (Sonora and Mojave deserts) and northwestern Mexico. It inhabits sandy dunes and dry washes with sparse scrub. They are commonly associated with creosote bush flats, which provide food and shade. They can withstand temperatures up to 45°C (113°F) without heat stress.
Taxonomy and Genetics: Belongs to the family Iguanidae, genus Dipsosaurus. Highly specialized for extreme heat tolerance, maintaining high active body temperatures. They belong to the family Iguanidae, representing a highly specialized desert-dwelling lineage. Genetic markers indicate ancient divergence from tropical relatives.
Behavior and Habits: Strictly diurnal. Active during the hottest hours of the day when other lizards retreat. Incredibly fast; can run bipedally on its hind legs when startled. When running at high speeds, they can become bipedal, lifting their front legs off the ground. They use their tails for balance and defense.
Morphology: Reaches 33-40 cm (13-16 inches) in total length, with the long, tapered tail comprising more than half. Has a cylindrical body, a small head, and a pale grey/beige pattern with darker reticulated bands. Their coloring is highly effective camouflage, blending in with desert sand and rocks. Small dark spots and stripes cover their greyish-brown body.

Care, breeding and tankmates

Terrarium Setup: Requires a wide desert enclosure (minimum 48x24x24 inches / 120x60x60 cm). Provide a deep dry sand substrate (15-20 cm / 6-8 inches) for burrowing. Add dry branches for climbing. Use a strong mesh screen cover to handle the high-heat fixtures required for lighting. The terrarium should be at least 120 cm long.
Lighting and Heating: Highly thermophilic. Basking spot surface temperature of 45-50°C (113-122°F). Ambient daytime of 32-35°C (90-95°F) on the warm side, with a night drop to 20-22°C (68-72°F). High-output UVB (10-12% T5 HO) is mandatory. Ensure the basking area temperature is verified using a reliable infrared thermometer. Halogen floodlights are excellent heat sources.
Humidity and Hydration: Arid environment (20-40% humidity). Provide a small, shallow water dish in the cool end. Do not mist the enclosure. Provide a humid microclimate by burying a moist hide box under the warm end. Mist the interior of the hide weekly.
Feeding and Supplementation: Primarily herbivorous. Feed daily with leafy greens (radicchio, dandelion, endive), flowers, and chopped vegetables. Dust with calcium and D3 three times a week. Shred foods like collard greens and dandelion leaves to make them easier to consume. Supplement the diet with calcium powder weekly.
Compatibility: Territorial. Do not house males together. Best kept individually or as a male-female pair in a large enclosure. A single male can be housed with multiple females if the enclosure is large enough. Monitor females for signs of territorial harassment.
Health and Common Diseases: High risk of Metabolic Bone Disease (MBD) if UVB or calcium is lacking. High humidity leads to skin blisters and fungal infections. Monitor for respiratory infections if humidity levels remain too high for extended periods. Ensure the enclosure has large side vents.

Geographic Origin and Distribution

Native to the arid regions of the southwestern United States (Sonora and Mojave deserts) and northwestern Mexico. It inhabits sandy dunes and dry washes with sparse scrub. They are commonly associated with creosote bush flats, which provide food and shade. They can withstand temperatures up to 45°C (113°F) without heat stress.

Origin

Central America and CaribbeanNorth America

Reptile profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
15.4 cm
The catalog's scalar value is 15.4 cm. The ReptTraits v1.2 source reports a maximum adult measurement of 15.4 cm for this species, recorded as snout–vent length (SVL). These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 08/10/2026