However, there are also a few animals that pose a potential danger to visitors. With that in mind, these are five creatures you should beware of while adventuring in El Yunque National Forest.

El Yunque is an example of this ... and may encounter plants and animals that you can't see elsewhere in the U.S. This lush mountain terrain is the very definition of a tropical rainforest.

Abdur Rahman, of Pewaukee, Wis., disappeared on Sunday, Feb. 23, while hiking with family members in the El Yunque National Forest Anna Lazarus Caplan is a writer-reporter for PEOPLE. She has been ...