Investigators team up with specialists to search for gigantic wild hogs.

A mystery predator with a taste for blood prowls North Carolina, feasting on farm animals and pets.

Paranormal investigators hope to prove the existence of ghosts at the Lizzie Borden house.

Searching for evidence of the legendary Ohio Grassman, a Bigfootlike creature.

Investigating reports of huge, man-eating snakes of 50 feet or more in length in Venezuela.

Experts and witnesses report mutant rats are getting bigger and more dangerous.

Eyewitnesses report a "black beast" is at large in the moors of England and killing livestock.

Investigators hunt for the Texas Chupacabra, a beast blamed for draining livestock of their blood.

American Indians' Bigfoot stories and cave art.

New England experiences a vampire scare in the 1700s.

Divers investigate reports of a massive octopus in the Pacific.

Tracking northern New York's sasquatchlike Monster of Whitehall.

Searching for a Canadian lake creature dubbed "Cressie."

Investigating reports of a wild man in a remote part of China.

Investigating horrific bear attacks and strange bear remains.

A team returns to the Sea of Cortez in hopes of confirming a sighting of a 100-foot squid.

An expedition hunts for a monster-sized, predatory spider in South America.

Shark sightings ranging from Illinois to the Louisiana bayous and the St. Lawrence River.

Searching for the megalania lizard in Australia; Komodo dragons.

A sasquatch might be responsible for attacks on a remote cabin in Canada.