Are you sure you want to visit a rainforest? With the whooping monkeys, the kaleidoscopic birds, and the immensely lush foliage, it’s understandable that many dream of exploring the spectacular lungs of our planet. But are you ready for just how dangerous and inhospitable rainforests can be? Take the Amazon Rainforest, for example. The place is teeming with dangerous animals you wouldn’t want to see, from jaguars and anacondas to electric eels, razor-toothed piranhas, and fearsome bullet ants. And don’t forget the poison dart frogs, which are no longer than 1.5 inches but possess enough toxin to kill 20 people or 20,000 mice.