Columbian Rainbow Boa Constrictor (Epicrates cenchria maurus)



The Columbian Rainbow Boa Constrictor found in Amazon region of South America. They prefer to live in the rainforest due to the humidity and temperature, natural cover from predators and selection of potential prey. It is commonly found in or along rivers and streams and is a very capable swimmer.   However they become mostly terrestrial as they become older and heavier.

Rainbow boa’s are known for their attractive iridescent sheen on their scales in the sunlight.   Generally uniform brown in color with large dark edged vertebral rings, with light centers forming saddles, this may also appear as a slightly off-center ‘S’ pattern. They have a day to night color change. Primarily noticed in that their pattern will become a lighter almost silver and have molted silver sides and bottom.   Although individuals of abnormal colors and patterns exist.   The Colombian rainbow boa is moderate in size, 4 to 6 feet average. There is clear size differences between males and females, with females generally being significantly larger, in both length and girth, than males.

Rainbow Boas are non-venomous and use their constrictor muscles to subdue their prey. They have special heat-sensing pits on their faces that allow them to detect the body heat of their prey.   They will feed on small mammals, birds and lizards using their heat-sensing abilities to hunt in the low light of dusk through dawn.   Most rainbow boas will never eat a prey item larger than a large rat.   Rainbow boas may bite when they feel threatened in defense. This bite can be painful, but is rarely dangerous.

Females invest considerable maternal energy in their offspring since their young develop within the mother’s body. The young are able to develop in a thermo-regulated, protected environment and they are provided with nutrients. Young are born fully developed and independent within minutes of birth.


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