From Creatures Wikia
Junglenorns do not catch infections easily, they are hardier than other norn breeds are, therefore it's okay for them to live in the Jungle Terrarium. They age faster than normal norns do and their pregnancy takes a bit longer than usual. They need quite a lot to eat, as their metabolism is pretty active. Rotten food is no problem for their digestive system. They aren't prone to be stressed and keep away from water. They like to travel a lot, and so will push all portals in sight.