The green anaconda
Several movies have been filmed about her and her dangerousness. And it is that this boa is the largest in the world (although the reticulated python can be longer) and has the ability to ingest animals as large as a cow. Cases have been reported in which this typical Amazonian animal has swallowed human beings. The cases are rare, since they do not attack unless it is to defend themselves, but seeing a species of this magnitude could make anyone tremble.