Located outside of civilization, the jungle is a vast unknown. Many plants never seen, many beasts never discovered.  However, what is known is that one cannot survive alone in this jungle.  There are many poisonous trees and plants and it is impossible to see the sun once in it.  Just an incredible amount of vast, dense and impassable vegetation.
Unexplored jungle, Jungle
traveller
monster
They call me a monster. I was simply living my life before they invaded my home and tried to kill me! I hate those filthy pink little creatures. I will show them a monster.
Me? Are you talking to me? Surely you are not talking to me like that! Hey, come on! Please! Don't hurt me, I'm friendly.  But you look so soft and pink and really just delicious. I've got friends! Y-yeah, they're all here, just behind me. Your friend looks an awful lot like a grape if you ask me. Alright, you got me. I'm alone. My family died when I was young and I'm wandering out here poor. Go ahead and eat a perfectly innocent, defenseless little boy.  That's what people did to my family. Why do you think I hate people so much? Do you think I want to live out here in the scary jungle? You live here? How? I've been having trouble getting by and I've just been here a week. For one thing, stay away from the purple plants, they'll have you seeing hallucinations for a month! That's all I've been eating...do you know any caves nearby? I haven't slept in days. Truth be told, I'm a little afraid of the dark so I tend to avoid the caves. Then where do you sleep? On the ground? With the beasts?