The Junglenorn genom is not that different from other norns genom. That's why you can easily crossbreed them with other races without encountering to many problems. Here is what chief scientist Eliane found out is different in their genes:

They are more hardy if catching an infection but not immune. They age a little bit faster than other norn but are far from being fastagers. Their pregnancy should take longer than for other norn and they have a natural need to travel. So they push portals a lot. They keep cool in stressful situations and don't like to be in water. Due to their high metabolism they have to eat a lot and if left in an aerea without food can starve rather quickly. Rotten food however is no problem for their digestive system.