Clark’s spiny lizard (Sceloporus clarkii)

Sceloporus clarkii, commonly known as Clark's spiny lizard or Clark's rock lizard, is a species of lizard belonging to the family Phrynosomatidae. It is native to the southwestern United States, particularly found in parts of Arizona and New Mexico.

Clark's spiny lizard is a medium-sized lizard, with adult individuals typically measuring around 6 to 8 inches (15 to 20 centimeters) in snout-to-vent length, and having a slender body structure. Like other spiny lizards, it possesses rough and keeled scales, giving it a spiky appearance. The coloration of Clark's spiny lizard is highly variable, with individuals ranging from gray to brown or olive, often with darker markings or patterns on their bodies. Males may exhibit brighter or more vibrant coloration during the breeding season.

This species is typically found in rocky habitats, such as canyons, slopes, and rocky outcrops. It is well adapted to climbing and can often be seen basking on rocks or perched on elevated positions. Clark's spiny lizard is diurnal, meaning it is active during the day, utilizing the warmth of the sun to regulate its body temperature.

The diet of Clark's spiny lizard primarily consists of small invertebrates, including insects, spiders, and other arthropods. It is an opportunistic predator, using its keen eyesight and agility to locate and capture prey. It may also consume plant material, such as fruits or flowers, on occasion.

During the breeding season, which typically occurs in the spring, males engage in territorial displays to attract females. These displays may involve head bobbing, push-ups, and color changes. After mating, the female lays a clutch of eggs in a nest dug in the soil or among rocks. The eggs incubate for several

weeks, and the hatchlings emerge as miniature versions of the adults. Clark's spiny lizard, like other species within the genus Sceloporus, is known for its ability to regulate its body temperature and change color. It can adjust its coloration to match its surroundings or to regulate its body temperature, making it better suited for survival in its rocky habitat.

Conservation status information specifically for Clark's spiny lizard is limited, but as a general trend, spiny lizards are not considered threatened or endangered. However, local populations may face habitat loss or degradation due to human activities, highlighting the importance of preserving their natural habitats and raising awareness about their ecological significance.