The rosy boa, Lichanura trivirgata , is one of only two boas found in the United States. Because of their gentle disposition and moderate size rosy boas make excellent pets. They can live for 18 years in captivity. They have small eyes with vertical pupils, small head scales, and males can be distinguished from females based on the presence of spurs.
Rosy boas are usually nocturnal, but are diurnal in early spring.
They are primarily terrestrial but will also climb low shrubs. Their normal habitat consists of desert, arid scrub, brushland, rocky chaparral, and ravines, in places where moisture i s available. They spend much of their time hiding under rocks. In nature they eat small mammals, including pinkie cottontails, and birds. Rosy boas are calm snakes, seldom biting, but will coil into a ball with head in center if frightened.