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Greater Earless Lizard

The Greater Earless Lizard, Cophosaurus texanus, is a species of lizard found in the southern American States of Texas, New Mexico and Arizona. They are also found in Mexico in the states of Sonora, Chihuahua, Durango, Coahuila, Nuevo Leon, Tamaulipas, Zacatecas, and San Luis Potosi.

Greater earless lizards grow from 3-7 inches in length. They are normally an overall tan or gray color, reflecting the color of the sand and rocks in their native habitat for camouflage, with black, brown or white spotting. Males often develop bright blue and green colorations, while females tend to be duller in color, except when gravid when they turn a bright orange color. Many have a distinctive pair of curved black bars just before the hind legs.

All earless lizards are diurnal, basking lizards. In the early morning they forage for insects, and then spend several hours basking in the sun, until it becomes too hot, around 104 °F at the surface, when they retreat to a burrow or rock crevice. The greater earless lizard is characterized by the lack of external ear openings, which is presumably to prevent sand from entering their body while they dig.

Greater Earless Lizard


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