Tulsa Zoo’s Reptile and Aquatics department recently announced the hatching of six Desert Iguanas. The little lizards are currently on display in the Zoo’s Conservation Center reptile nursery.
The Desert Iguana (Dipsosaurus dorsalis) is one of the most common lizards. It is native to the Sonoran and Mojave deserts of the southwestern United States and northwestern Mexico. They are also found on several Gulf of California islands.
The Desert Iguana is a blunt, medium-sized lizard that grows to a maximum size of about 61 cm (24 in), including the tail. They are grayish tan to cream in color, with a light brown reticulated pattern on their backs and sides. The belly is pale. During the breeding season, the sides become pinkish in both sexes.
Their preferred habitat is largely contained within creosote bushes on mainly dry, sandy desert scrubland below 1,000 m (3,300 ft). They can also be found in rocky streambeds. In the southern portion of its range, this lizard lives in areas of arid subtropical scrub and tropical deciduous forest.
The Desert Iguana can withstand high temperatures and are out and about after other lizards have retreated into their burrows. If threatened, they will scamper into a shrub and go quickly down a burrow. Burrows are usually dug in the sand under bushes like the creosote. They are also known to use burrows of kit foxes and desert tortoises.
Mating takes place in the early spring. One clutch of eggs is laid each year, and each clutch will have three to eight eggs.
Desert Iguanas are primarily herbivorous, eating buds, fruits and leaves of many annual and perennial plants.
Birds of prey, foxes, rats, long-tailed weasels, some snakes, and humans are all known predators of this lizard and their eggs. The Desert Iguana is currently classified as “Least Concern” on the IUCN Red List of Threatened Species.