Jungle Boas originated in Sweden and were produced by a good friend of mine by the name of Lars Brandle. He had purchased a very large boa with a zigzag (for lack of a better description) pattern down it's back from a Zoo in Sweden. He bred this animal to a normal boa and produced some jungles and normal looking boas from the first breeding. He then bred one of the jungle males back to its mother and produced some super Jungles and jungles. Also a jungle was bred to a normal last year here in the states and half of the babies were born jungle. This proves finally that this is NOT a simple recessive genetic trait but dominate. We are scraping the term heterozygous for jungle, possible heterozygous for jungle boa constrictor. There will be jungle boa constrictors and super jungle boa constrictors. In other words the old jungle boas are super jungles and the possible heterozygous with the zigzag pattern are jungles.