Said to have the most painful bite in the world, this little sucker can give you the same painful feeling as being shot. At least their bites aren’t fatal.
The Black Caiman
One of the biggest alligators in the world. These guys will eat anything, even their own kind. Their powerful jaws will slam shut on you and drown you in the river before devouring you.
One of the three species of sharks that are labelled ”most likely to attack humans”, the bull shark can be found in both saltwater and freshwater. Find them lurking along the shores of the Amazon river hunting things like dolphins, small mammals, and sometimes humans.
If you think that getting off the ground and navigating the trees is a safer way around the Amazon, just take a look at the tree boa. Though they aren’t venomous, they can suffocate you after delivering a painful bite.