Mearns’s Rock Lizard

The Blue Spiny Lizard (Sceloporus cyanogenys) is one of the most stunning, brilliantly colored reptiles in North America. Inhabiting the sun-scorched limestone canyons and thorn scrub of southern Texas and northeastern Mexico, adult males of this large, armored lizard...

Twin-spotted Spiny Lizard

The Twin-spotted Spiny Lizard (Sceloporus bimaculosus) is a large, heavily armored reptile native to the sun-baked canyon cliffs and rocky slopes of the Chihuahuan Desert. Easily distinguished by its sharp, overlapping keeled scales and two prominent dark blotches or...

Mojave Fringe-toed Lizard

The Mojave Fringe-toed Lizard (Uma scoparia) is a charismatic sand-dune specialist endemic to the isolated blowsand dune fields of the Mojave Desert. Renowned for the remarkable comb-like fringe of scales along its hind toes that allow it to sprint across scorching,...

Spot-tailed Earless Lizard

The Spot-tailed Earless Lizard (Holbrookia lacerata) is a rare, ground-dwelling reptile endemic to the rocky limestone plateaus and shortgrass savannas of Texas and northern Mexico. Easily distinguished from all other earless lizards by the distinct rows of round...

Striped Plateau Lizard

The Coachella Valley Fringe-toed Lizard (Uma inornata) is an endangered, hyper-specialized reptile found nowhere else on Earth outside the windblown sand dune systems of the Coachella Valley in southern California. With specialized comblike scales on its toes that act...

Keeled Earless Lizard

The Keeled Earless Lizard (Holbrookia propinqua) is a specialized, fast-running reptile native to the sun-bleached coastal dunes and sandy barrier islands of the Gulf of Mexico. Characterized by keeled, overlapping dorsal scales and the complete absence of external...

Western Skink

The Colorado Desert Fringe-toed Lizard (Uma notata) is an exquisite, highly specialized sand-dwelling reptile endemic to the wind-sculpted sand dunes of the Colorado Desert. A true marvel of evolutionary adaptation, it possesses comb-like scales on its hind toes that...

Lesser Earless Lizard

The Lesser Earless Lizard (Holbrookia maculata) is a charming, sand-dwelling reptile widely distributed across the arid grasslands and desert plains of North America. Famous for having no visible external ear openings, it has evolved this remarkable anatomical...

Giant Horned Lizard

The Giant Horned Lizard (Phrynosoma asio) is the undisputed heavyweight titan of the horned lizard family, being the largest living species in the genus Phrynosoma. Endemic to the Pacific lowlands of southern Mexico and Guatemala, this formidable reptile boasts the...

Greater Earless Lizard

The Greater Earless Lizard (Cophosaurus texanus) is a swift, charismatic desert lizard common to the rugged canyonlands and rocky washes of the American Southwest and northern Mexico. Entirely lacking external ear openings to prevent sand and gravel from entering its...