Orang Pendek, which means "short person", is the most common name given to an unconfirmed animal that reportedly inhabits remote, mountainous forests on the island of Sumatra.Sightings of the animal have been documented for at least 100 years by forest tribes, local villagers, Dutch colonists, Western scientists and travelers. According to witnesses, the animal is a ground-dwelling, bipedal primate that is covered in short fur and stands 80 to 150 centimeters tall.

The scientific community has demonstrated little interest in the Orang Pendek. Thanks to a grant from National Geographic, however, a group of Western scientists in Indonesia are searching full-time for the animal.

Iceland: The Worm Monster

Then on to the hunt for a huge worm said to reside in the remote Lake Lagarfljot in Iceland. The Worm Monster has been spotted consistently since 1345, and is one of the oldest lake monsters ever (more or less) recorded. It is presumed to be longer than a football field, and has been seen coiled near the shore by countless eyewitnesses.

According to reports, it has been spotted in both water and dry land. In fact, it is believed that it can slither into forests. Feared by locals and relatively unexplored by science, the truth behind the Icelandic worm is a mystery waiting to be explored.

See photos from this episode.