The Jungle Mutation in Boa Constrictors has two components; color and pattern and it is an incomplete dominant trait. An incomplete dominant trait, in the simplest of terms (emphasizing simplest for those who are really rabid about more complex explanations), is a trait that, by itself, is incomplete and so the incomplete form of it is technically visually heterozygous for the complete trait (this means they visually show that they can create the Super Jungle mutation). This means that what we call Jungles are actually Het. Jungles and taking two Het. Jungles and pairing them together creates the actual Jungle. However, for sake of ease and lack of confusion, the incomplete form is called Jungle and the complete form is called Super Jungle. The Super Jungle results because you are basically combining two halves of the same incomplete dominant trait together to make it complete. What results is a complete trait that will produce only incomplete dominant versions of itself no matter what it is bred to (of course more supers would result if you paired it with yet another Jungle and all Super Jungles would result if you bred it to another Super Jungle).
There are five to seven primary indicators that have been recognized in Jungles (depending on who you talk to):
- Missing/Floating Saddle Points
- Aberrant Pattern
- "Popping Color"
- Broken/Distorted/Hole Punched Head Stripe
- Pale Pattern Elements
- Two Tone Coloration
- Black Outline Around Saddles
While these indicators are great tools in helping people recognize a Jungle Boa, the problem is that a Jungle Boa can have ONE of these primary indicators and still be a Jungle Boa. A Jungle is not always going to have a broken head spear, a Jungle is not always going to have black outlines around the saddles and a Jungle is not always going to have missing and floating saddle points.
One of the most important things to remember is that an aberrant pattern does not a Jungle make; just because it has a wacky pattern does not mean it is a Jungle. In fact, that is probably the least important element in telling a Jungle from a non-Jungle animal.
It is also important to note, especially when it comes to Hypo Jungles, that black outlines will not always be readily seen on the saddles.
Even the darkest of Jungles POP out at you meaning that in Jungles, there is almost always going to be an obvious intensity of dorsal color versus the color on their sides and it causes them to POP out. This is one of the most important aspects of determining when a Jungle actually is a Jungle. Generally, the back of the animal is going to be so much more colorful from the paler color of the sides that there is actually an outline of color that can be seen, or a “racing stripe” that prominently shows where the separation of color is.