Range: Most of the Western half of the United States from southern Canada down to northern Mexico.
Description: Light green to brown background color with darker brownish blotches that are border with lighter lines. Adult prairie rattlesnakes can reach a maximum length of about 5 ft.
Habitat: Dry open prairie landscapes and also sometimes found in the edges of coniferous forests.
Wild: Mainly small mammals, juveniles will sometimes feed on amphibians or reptiles.
Reproduction: Females give birth to live young in late summer and early fall. The average litter is between 4 and 14 young but can sometimes be up to 25.