The search for the Loch Ness Monster has captivated the world for decades.

Mysterious force killing North American plains' cattle is under investigation.

In the marshy swamp land of Texarkana a legendary beast has hunted.

For over 250 years a frightening winged beast has been menacing.

What if a famous urban legend was not a legend but a frightening fact?

A large hairy creature is said to be preying on the elk and frightening residents.

Investigating sightings of a 60-foot shark.

MonsterQuest explores increasing Bigfoot encounters and violence.

A fifty-foot monster is said to lurk beneath the cold, isolated waters.

Mariners have long told stories of frightening beasts.

In the Pacific Northwest, a small island may hold the clue.

Monsters lurk in our lakes and rivers and along our coastlines.

A remote island off the coast of Australia was once home to a real monster.

The most venomous creature of the sea is on the move and spreading.

Papua New Guinea could host a prehistoric beast, the 'Demon Flyer' pterosaur.

Engrained in the history and mythology of India are tales of a ferocious creature.

Years ago prehistoric cousins to today's crocodiles stalked the earth.

In the jungles of central Africa there may be a living relic of a dinosaur.

Dogs are known as man's best friend, but now canines are striking fear into many.

Across North America there is something strange and frightening circling overhead.

Chimpanzees are known to us as amusing circus attractions.

Large cats are prowling parts of America and they may have a taste for flesh.

There have been stories for centuries about huge, aggressive albino sperm whales.

Feared night monster, the Abominable Snowman, allegedly attacks people, animals.