Western Spiny-Tailed Iguana

Fascinating facts about the Western Spiny-Tailed Iguana

• The western spiny-tailed iguana can grow to a total length of 1.3 m, while females are only a little shorter at about 1.0 m, making it one of the larger members of its genus. Its body is covered in distinctive keeled scales that run along a long, spiny tail. It favours rocky environments where crevices provide shelter and sun-baked rocks serve as basking platforms. As a diurnal and fast-moving lizard it darts across rocks and climbs nearby trees to escape threats.
• Unlike most of its close relatives, the western spiny-tailed iguana lives in social groups rather than alone. This gregarious habit allows it to share basking sites and shelter in the numerous rock crevices of its habitat. The lizards are active by day and rely on quick bursts of speed to flee predators, though they will defend themselves with tail lashes or bites if trapped.
• On Florida's Gasparilla Island a feral colony of western spiny-tailed iguanas was recorded at about 12 000 individuals in December 2007. The population originated from pets that were released in the 1970s and has since become self-sustaining, with the lizards reproducing in the wild. Their presence on the island demonstrates how introduced individuals can establish large, stable populations far from their native western-Mexico range.
• In Florida the iguanas are regarded as a nuisance because they feed on ornamental flowers and shrubs, attack nesting birds and sea-turtle eggs, and have been reported to chew through electrical cables, threatening local infrastructure. Their habit of burrowing tunnels in sand has raised concerns that dunes and seawalls could collapse, reducing protection from hurricanes.
• After mating in spring, a female western spiny-tailed iguana will dig a nest in loose soil and lay a clutch of up to 50 eggs. The nesting period lasts eight to ten weeks before the eggs are deposited, and the burrow provides protection for the developing embryos. The eggs incubate for about 90 days, after which bright-green hatchlings emerge in July and become abundant in August.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Western Spiny-Tailed Iguana

In the scorching deserts of Mexico and Central America, the Western Spiny-Tailed Iguana roams with a rugged elegance, its armored scales glistening like polished onyx as it navigates the rocky outcrops and scrubby vegetation with a deliberate, almost reptilian grace. As it moves, its long, spiny tail swishes back and forth like a metronome, a mesmerizing counterpoint to the iguana's slow, deliberate steps, while its piercing eyes scan the surroundings with a watchful intensity. With its remarkable adaptability and robust physiology, this formidable creature has thrived in one of the harshest environments on Earth, a true marvel of evolutionary resilience.

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