Inventor Robert Rines, who believes he saw the Loch Ness Monster surface in 1972, searches for evidence to prove his theory that the creature has died.

Investigating whether the slayings of hundreds of cattle every year in the United States are related to cult activity, predators such as wolves, or a creature that has not been identified yet.

A swamp beast immortalised in the film "The Legend of Boggy Creek" is said to stalk the residents of a small town in Arkansas.

What is the truth about the Jersey Devil, which has been described as a winged half-bird, half-horse creature with hooves, a reptilian tail and a scream that echoes through New Jersey's Pine Barrens?

An urban legend comes true during the 1930s when New York City workers find swarms of alligators living beneath the busy streets of the metropolis.

The team hunt for a legendary creature that preys on elk, and perhaps even people, in the Colorado Rockies.