While in the military I had the experience of spending quite a lot of time in the amazon... I've had my fill of snake and spiders and yes, I don't care for either nor do I care for "the rain forest"... F**k that, it's a JUNGLE!!!!
I did lean up against a tree once... One of those trees that looks like all roots going up... after 10 minutes or so it moved... It was actually a snake body intertwined with the tree I was leaning on... about 15 - 20' long... I unloaded 2 magazines of 9mm as I ran through the jungle, throwing off equipment as I went... So, I can't look at an earthworm today without flashbacks...
Did I mention the foot-long spiders they have down there???