Ao-Ao

The Ao-Ao is one of seven children of the evil spirits Tau and Kerana in the mythology of the Guaraní people of South America. He is depicted as either a gigantic, carnivorous warthog, or a half-human, half warthog ogre-like creature The creature hunts and eats men as his primary food source, including their clothes. The only way to effectively escape from him is to climb a palm tree, which holds some sort of unknown power over the Ao-Ao and will cause him to run away frustrated.

Ikels

Small, hairy dwarfish humanoids with glowing red eyes. Sightings of these creatures are often connected with UFO activity in South America. In contrast with the cold, calculating, emotionless stereotype associated with sightings of other alien types (such as the Grays,) these are rather aggressive and violent. In the 1950s several boys reported an abduction attempt by these strange creatures, in which they had to fight them off with stones. Sightings of such short hairy wildmen pre-date the UFO era, leading to the speculation that they are in fact not extraterrestrials but a hidden subterranean race.