Does a giant prehistoric creature lurk in Lake Champlain? The locals nicknamed it Champ. Generations of eyewitnesses rumor to have seen the creature, a dinosaur-like animal, 15-25 feet long most resembling the extinct plesiosaur. Examine the mystery surrounding Lake Champlain as specially designed cameras search for the monster. Existing photographic evidence will also be put to the test.

Does Canada have its own Bigfoot? Owners of a fly-in fishing cabin report attacks by an unknown creature. Can DNA tests on blood and tissue from the alleged beast reveal its true identity? The test results will surprise you. The best evidence available will be examined, from pictures and video, to hair and bones. Scientists will be brought in to tell viewers what the evidence reveals. Discover the truth behind these beasts and take a scientific look at legendary creatures around the world.

Is the legend of the Kraken, a tentacled beast as large as a whale, based on myth or a real creature? Take an expedition to the Sea of Cortez, Mexico where fishermen regularly claim to encounter large schools of giant squid. Watch as squid expert Scott Cassel uses lures with built-in cameras in an attempt to video a Kraken-sized squid 1,000 feet below the ocean. What Cassel and his team discover will make history.

Native Americans have long revered huge birds called Thunderbirds. There was a rash of giant bird sightings in Illinois, Texas and Alaska back in the 1970's. A giant bird with a 15-foot wingspan allegedly attacked a small child in Illinois. Could there really be a giant bird or is it mass hysteria? Take a scientific journey and follow the many eyewitnesses' accounts across the country and examine the most compelling evidence.

Bigfoot has been sighted in Washington State more than any other place on earth. Join an all-female expedition as they try to lure a Bigfoot within range of their cameras. The 1967 Patterson footage will be reexamined using digital microscopes that could reveal details that might prove if the beast is real or a hoax.

Mans best friend is many times our last line of defense. But something strange is killing Fido. In 2006, a rash of pets were killed in Maine and Minnesota by a beast locals describe as a mutant. But there are more than just stories, a creature was hit by a car and the body was found. This strange looking creature will be DNA tested to see what it really is. And two MonsterQuest winter expeditions will be launched to trap other dog killers still at large.

Attacks by mountain lions make headlines across the U.S. But some people say they are seeing something else...large black cats. From Texas to Minnesota to West Virginia, MonsterQuest will follow the eyewitness accounts and physical evidence of these demon cats. Pictures and law enforcement encounters prove a big black cat is out there but what is it? While they resemble a mountain lion, there is no such thing as a black mountain lion. Bones from a carcass, eyewitnesses claim was a huge black cat, will be put to the DNA test.

The movie Jaws scared an entire generation off of ocean beaches...but there are monsters lurking in freshwater lakes and rivers too. Are these just fish stories or are they real? From the Artic Circle to the Amazon, MonsterQuest will launch expeditions to find the biggest and nastiest giant fresh water fish. From catfish large enough to swallow kids whole to trout as large as a boat. Scientists will deploy giant lures and underwater cameras in a search for monster fish.

The vast swamps of Louisiana and Florida hide many animals...including a beast locals call The Swamp Creature. At 7 ft tall, with red hair, and a rotten egg smell this beast has been nicknamed The Skunk Ape. For the first time, bloodhounds will be used to track the elusive creature. And sexual ape pheromone chips will be used to guide the bloodhounds to their prey.

In 2006, the NY times revealed a devilish plan by Soviet dictator Josef Stalin to create monsters by crossing humans with apes. But was it real? And how far did he get? This MonsterQuest scientific journey will travel to Russia to find out. We will also look at the many other efforts, both by man and Mother Nature, to combine the strength of apes with the intelligence of man. This is a real Frankenstein story& from head transplants in the U.S. to cases of ape on human attacks. Man and Apes are not as different as you might think.

For decades cameras have been capturing images of a flying, torpedo-like creature. So fast it cannot be seen with the naked eye. Some think it is a military weapon, others believe it may be a creature from another dimension. But just what is it? This MonsterQuest scientific journey will use super high speed photography, physics and even a wind tunnel experiment to shed light on a creature simply referred to as Rods.

A MonsterQuest expedition will deploy researchers and the latest technology into the jungle, searching for evidence of a creature natives describe as half man, half ape.

This episode was a rebranding of a previous history channel program, it tells the story of Giganto.

Eyewitnesses in Wisconsin and Michigan report seeing a tall hairy man - beast some describe as a dogman...a centuries old legend based on myth, not a real animal. But what are they seeing? MonsterQuest will deploy professional hunters and trackers in an area with recent sightings, armed with a tranquilizer gun. And for the first time eyewitness accounts will be put to the test, using polygraphs and hypnosis&the results will astonish.

Investigation into the reports of gigantic swine like the 800 lb "Hogzilla" shot in Georgia in 2004.

Investigation into the 2007 Bolivia, North Carolina reports of strange attacks on livestock and pets by a creature that feeds on blood.

Investigation into the supposed existence of ghosts at the famous Lizzie Borden axe-murder house in Massachusetts.

Investigation into sightings of Bigfoot-like creatures throughout the state of Ohio.

Investigating reports of huge, man-eating snakes 50 feet or more in length in Venezuela. Also pet pythons that escape, multiply and grow huge in the Florida Everglades.

Fossils of giant rats have been discovered by archaeologists, but are they returning? Follow along as Monsterquest examines reports that these large creatures are inhabiting modern sewers and that some are man-eaters.

Between 1979 and 1983 over 200 livestock were torn apart on the moors of England. Despite the efforts of armed marines, no predator was ever found and the attacks continue to this day. Eyewitnesses allege that a strange "black beast" is the culprit, but new video evidence could have answers to the mystery.

Investigation of the Chupacabra, or "goat sucker". A mysterious bipedal, blood-draining creature said to be responsible for a rash of unexplained animal killings in Puerto Rico and Texas.

Native American history is full of "Hairy Man" stories and cave art that date back over a thousand years. Did Native Americans know the truth behind the Bigfoot legend? An expedition along the Klamath River into reservation land will use state of the art technology to search for something locals don't doubt is real. With unprecedented access to Native American stories and recent sightings, MonsterQuest examines this creature that is both feared and revered.

Most people agree that vampires are fictional creatures, but throughout history and even today, there have been cases of people who thirst for blood. These "real vampires" believe that in order to survive, they must feed on the life-force of others. In this episode, we investigate these living vampires to find out if there is a physical reason behind their cravings. Can science separate the fact from the fiction surrounding these "creatures of the night"?

Throughout history there have been sightings of a massive octopus big enough to attack and sink boats. Could such a creature really exist? Our divers probe the depths of the North Pacific where the world's largest known species of octopus lives. Could these octopuses be a food source for a monster? The investigation will use various underwater camera systems, including a tiny camera small enough to probe inside octopus lairs. Deep waters, rough currents, freezing temperatures and the prospect of encountering a 20-ton boneless horror make this a dangerous expedition.

In 1976, in upstate New York, several police officers witnessed an animal that they can't explain. They describe it as a "large creature, 7 to 8 feet tall, walking like a gorilla hunched over, making a sound like a woman screaming." Over thirty years later sightings are continuing and these police officers have agreed to be put to the test. Meanwhile, MonsterQuest teams up with local researchers and renowned wildlife experts on the trail of the Monster of Whitehall

Join divers, biologists and forensic sketch artists as they team up to search for "Cressie", the mysterious creature allegedly lurking at the bottom of Lake Crescent in New Foundland. Native American legends date back centuries and refer to a "Pond Devil" and a "Swimming Demon". There have been recent sightings by witnesses who describe seeing a strange oversized eel. Discover what the evidence reveals as scientists use the latest hi-tech equipment to get to the bottom of Lake Crescent.

Take a journey to the Far East, to the remote Chinese province of Hubai to discover what locals have dubbed the "Wild-Man." Witnesses have reported seeing a creature that is covered in reddish-brown hair, walks on two legs and is anywhere from five to seven-feet tall. Chinese authorities have collected over one hundred samples of unidentified hairs from the alleged monster and claim that it is just a matter of time before they capture this "Wild-Man." Join an international team of experts in a search for answers.

Are big bears are getting more assertive and aggressive? In pre-historic times, giant bears weighed up to a ton and stalked early man. Listen as witnesses describe horrific bear attacks and take a look at unusual bear remains. The team journeys from Alaska to New Jersey to learn about bear activity and if hybridization or the next step in bear evolution could produce another crop of giant bears?

The Sea of Cortez holds a monster of gigantic proportions. Video evidence of what appeared to be a huge squid, 1000 feet under the ocean's surface, was captured in 2006 by a Monster Quest expedition team. The footage is less than 2 seconds long, and difficult to analyze, but some experts believed the squid was up to 100 feet long. Now, MonsterQuest returns to the area with improved technology to find proof of this legendary sea beast.

Recently, American soldiers in Iraq were photographed with a 3 foot long arachnid. In Peru there is rumors of spiders large enough to attack and kill chickens. A MonsterQuest expedition is sent to South America in search of these creepy crawlers that so many fear.

The bull shark and greenland shark are examined. These sharks are believed to have swam upriver hundreds of miles.

A MonsterQuest expedition examines the Komodo Dragon, along with one of it's early ancestors, the Megalania Lizard.

Another attempt at finding proof of the Sasquatch. Previously collected blood samples are further investigated, while another expedition is sent out in search of the famous hairy beast.

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.

Something mysterious and violent is killing cattle of the North American plains, but what is behind these gruesome attacks: satanic cults, an unknown predator, or something previously unknown to man? Livestock are found dead, often with their blood drained and organs or body parts removed from their bodies. With no apparent footprints or tracks leading to or from the carcasses and strange circles near the site, the mystery only deepens.

In the marshy swamp land of Texarkana a legendary beast has hunted the residents of a small Arkansas town. Their story was immortalized in a well known movie, The Legend of Boggy Creek. The real events were a series of violent nocturnal attacks that left behind not only fear and panic but also remarkable tracks. But the evidence is not just confined to history. Scientific clues continue to this day and point to a malevolent monster that stalks the Deep South.

For over 250 years a frightening winged beast has been menacing the residents of New Jersey. The Jersey Devil is described as a winged half-bird half-horse, with hoofed feet, a reptilian tail and a penetrating scream that echoes through the forests of New Jersey's Pine Barrens. Wildlife experts claim that a misidentified but known animal may be responsible for the encounters, but recent witnesses who have seen the beast are scared for their lives, and say the scientific evidence will prove there is a monster.

History tells us that tales of Alligators lurking around in the sewers of New York are based in truth. In the mid 1930s three teenagers pulled an eight-foot alligator from a storm drain. Reports persisted until a skeptical Superintendant of Sewers was forced to investigate for himself. What was found shocked even him - swarms of alligators alive beneath the busy main street of America's biggest city. Crews were sent in to kill the deadly reptiles, but the stories of the gators in the sewers lived on to this day.

High in the rugged wilderness of Colorado's Rocky Mountains a large hairy creature is said to be preying on the elk and frightening residents. The stories date back centuries with the earliest settlers describing terrifying encounters with a large beast whose scream bellows across the hills. Even today ranchers and hikers report a monster they can't explain that may be attacking their horses

Sharks have terrified people for centuries and deep within the forbidding waters of Mexico's Baja Peninsula may lurk a mammoth sixty foot monster. In prehistoric times, huge carnivorous sharks, more than twice the size of a great white, ruled the waves. Marine experts claim these giants went extinct, but evidence may challenge that. Meanwhile, frightened Mexican fisherman talk of being stalked by a "Black Demon"; and sailors report close collisions with a shark unlike anything that they have encountered before.

Increasing close encounters are frightening people in rural America. Historic stories have told of violent abductions by hairy beasts. Monster Quest will investigate whether witnesses are seeing a known animal or the same Bigfoot creature that has been spoken of throughout history. Monster Quest employs polygraph examinations, DNA analysis and bite force tests to discover what monster is turning up its aggression.

A fifty-foot monster is said to lurk beneath the cold, isolated waters of North America. The stories from Lake Okanagan date back to the earliest First Nation peoples, who lived in fear of this terrifying creature in the lake that became known as “Ogopogo.” According to eyewitness accounts, this ominous creature has a large snake-like body, large eyes and can move at high speeds. Sightings of this lake creature are so common that it has been seen more times than Scotland’s Loch Ness Monster, making Ogopogo the world’s most documented lake creature. With new, photographic evidence and an array of high-tech technology, MonsterQuest launches expeditions to this lake.

Mariners have long told stories of frightening beasts that stalk the coast of Florida, but new video could prove that old sailors were seeing real sea monsters. A forked tail, ferocious teeth and a large body were all characteristics of the historic sea monsters. Now, one Florida man says that not only has he witnessed these creatures on countless occasions, but he also has hours of video proof. Experts are divided over the controversial evidence that shows tantalizing glimpses of these strange sea creatures. One marine biologist claims it is a disfigured known species, another expert says it is a seal thought long extinct, and still others maintain that it is something altogether unheard of. Whatever monster lurks here, close to innocent vacationers, MonsterQuest will investigate.

An expedition is launched on to British Columbia's Vancouver Island in search of a legendary Sasquatch that local native tales say would steal children who ventured too deep into the woods.

A look at an 1895 fish attack off the coast of Florida by a Goliath grouper, a massive fish that can weigh up to 1,500 lbs and a recent attack that may be evidence these dangerous fish are returning. Then, other attacks at the freshwater lakes of Minnesota by the no-less-aggressive Muskie could be on the rise.

A look at over 350 reports from the Australian island of Tasmania that claim a vicious predator, once thought to have hunted to extinction, has made a comeback—the Tasmanian Tiger, and how an Australian biologist is using preserved DNA of the animal in hopes of cloning a living specimen.

A look at the rising concern of poisonous jellyfish, from New York's Hudson River, to the beaches of Spain, these animals have become floating deathtraps in the world's oceans, and their population explosion may be the result of mankind's changes to their ecosystems.

A deep trek into the jungles of Papua New Guinea which could be hiding a flying creature local villagers call the "Demon Flyer," whose description is very similar to of the pterosaur of prehistoric origin.

A look at the reports of attacks by the "Monkey Man," a half-man/half-beast that has caused mass-panic around the city of New Delhi, India, where a massive search was undertaken by authorities to find the creature. Then later, the show follows an expedition into the Garo Hills to look for evidence of another possibly unknown primate, the Mande Barung.

A look at the 40-foot long prehistoric "SuperCroc" Sarcosuchus imperator an ancestor of today's crocodiles which can be up to 20 feet long, but witnesses are claiming modern crocodiles are getting much bigger. The show delves into Florida's swamps in search of record-sized crocs that could be returning to their prehistoric size.

The show follows an expedition deep into the jungles of Cameroon in search of evidence of the Mokèlé Mbèmbé – a creature local villagers identify as a long-necked sauropod thought to have gone extinct over 65-million years ago.

The legendary ape-like monster known as Sasquatch is the focus.

Dogs are known as man's best friend, but now canines are striking fear into many who report attacks by predatory packs. Originally descended from wolves, domesticated dogs were brought to the United States 12,000 years ago and used as aggressive protectors. Today, more and more dogs are being turned loose on the streets and returning to their wild roots. These feral dogs are attacking people. Now, MonsterQuest launches a search to follow these ferals, using state of the art cameras to uncover where they live and how dangerous they are to man.

Reports of flying creatures over North America are investigated. Also included is a history of flying creature lore; and an examination of a flying creature caught on film.

A look into the report of chimpanzee attacks and wild chimpanzees, including how powerful and vicious they can be, plus the possibilities of them surviving on their own.

The series follows a group of investigators into New York's wilderness in search of what area residents claim are big black cats, possibly escaped jaguars and panthers, that are stalking the local deer population.

Following the reports of attacks that inspired the Moby-Dick tale from classic literature, an investigative team searches for albino sperm whales to see if there is any truth to their aggressive nature.

An investigation into the increasing number of great white shark attacks, following a team of researchers who are trying to determine why sharks are becoming more aggressive.

An investigation into the foothills of North Western Kentucky to search for a Bigfoot-like creature that is said to make terrifying, wild screams. A tooth, photographic and audio evidence come to light, and investigators venture into the remote wilderness in an attempt to identify the source of these mysterious sounds.

Investigation into the adaptability of giant pythons in Florida as their habitat spreads into heavily populated areas such as Miami.

More than 50 years ago, South American scientists attempted to cross-breed bees that would produce more honey than ever before possible. But instead, they created a monster. Today, these giant bees are on the loose, spreading northward and invading US cities. MonsterQuest examines how these killer bees attack with an unseen ferocity and discovers that the bees may be adapting to colder temperatures, making them an even greater threat.