Reptiles
Giant Spotted Whiptail
Aspidoscelis stictogramma · also called giant spotted whiptails
Along a rocky desert canyon wash, a giant spotted whiptail digs determinedly through a pile of leaf litter, its bold spotted pattern and unusually large size for a whiptail making it one of the more conspicuous fast-moving lizards of the southwestern United States.
Overview
The giant spotted whiptail, Aspidoscelis stictogramma, is a large, active lizard native to rocky desert canyon and mountain foothill habitat across parts of the southwestern United States and northwestern Mexico. Its notably large size for a whiptail, bold spotted pattern, and energetic digging foraging style make it one of the more physically striking members of its genus.
A whiptail that digs rather than waits
While many lizards rely on ambush or basking patience to find food, the giant spotted whiptail commits to active, energetic digging through soil and leaf litter, a foraging style that reflects the restless, constantly moving lifestyle typical of whiptail lizards generally.
Status
Least Concern — widespread and stable across suitable rocky desert and mountain habitat throughout the southwestern United States and northwestern Mexico.
Giant Spotted Whiptail: common questions
How big does a giant spotted whiptail get?
This species is notably larger than many other North American whiptail lizards, a size difference significant enough to be reflected directly in its common name, making it one of the bigger whiptail species found within the United States.
Does the giant spotted whiptail reproduce without males like some other whiptails?
No, unlike several related whiptail species and populations that reproduce through parthenogenesis without any males at all, this species reproduces sexually in the ordinary way, with both males and females present and contributing genetically to each new generation.
How does the giant spotted whiptail find its food?
This species forages by actively digging and probing through soil and leaf litter using its snout and forelimbs, a considerably more energetic and determined foraging style than the sit-and-wait ambush approach many other lizard species rely on to find prey.
What kind of habitat does the giant spotted whiptail prefer?
This species favours rocky desert canyons, washes, and adjacent mountain foothills across the southwestern United States and northwestern Mexico, generally staying within reach of rocky cover it can retreat into quickly if a predator or other threat approaches.