
Ambush
Caimens are usually not aggressive towards humans. But because they hide so well under the vegetation, one can easily get very close to a croc without noticing its presence. Pantanal is one of the best places to see these reptiles where they gather in millions.

The Yacare caiman is a species of caiman found in central South America, including northeastern Argentina, Uruguay, southeastern Peru, eastern Bolivia, central/southwest Brazil, and the rivers of Paraguay. About 10 million individual Yacare caimans exist within the Brazilian "pantanal", representing what is quite possibly the largest single crocodilian population on Earth.