Adult males have substantially larger spurs along the side of the vent and also have noticeably thicker bases of their tails due to the invaginated hemipenes. These boas range from four to six feet (1.2 to 1.8 m) in length.
Distribution and Habitat
Rainbow boas are widespread throughout much of South America. Brazilian rainbow boas occur in the Amazon Basin, and in coastal Guiana, French Guyana, and Suriname and southern Venezuela. They live in humid woodland forests and can sometimes be found in open savannas.
Diet in the Wild
In the wild the diet consist of rodents, birds, and possibly some forms of aquatic life and lizards.