A Caiman on a log: one need not be afraid to go swimming with this species, because their weak jaws cannot wound man. [Costa Rica].
A large Crocodile resting in the water. This fellow is not a safe swimming companion. [Teracoles River, Costa Rica].
Two juvenile Boa Constrictors in a tree. Note the two heads. This is not a poisonous snake, but as an adult, it has tremendous constrictive power. There are individuals who keep them as pets. [Costa Rica].