Puerto Rican Boa
Usually Found: Puerto Rico
The Puerto Rican Boa is endemic to only one place on the planet, we’ll give you one guess where that is. If you answered “Puerto Rico,” you win the big prize! This terrestrial snake species is known for being able to grow to slightly over six feet in length. They usually feed on smaller animals like rodents, lizards, birds, and even bats as well. While this is certainly worthy of being on most creepy animals lists, what makes it work for one connected to caves?
Well, this boa constrictor species is commonly found in caves all over the region. While they are typically found in wooden or rocky territories, they’re also heavily known for being in caves. This is so common that people are warned to look out for them if they go into any cave on the island.