Naturalist Nick Baker hunts down the planet's strangest animals, beginning with the horned lizard, an American reptile which blows up like a spiky balloon to protect itself and can also squirt blood from its eyes. He also explores the flora and fauna of the Sonora desert, such as the cholla cactus, which stores deadly poison in hundreds of hooked spines
The naturalist travels to Peru in search of the vampire fish, a parasitic creature that lurks beneath the surface of the river and feeds on the blood of other fish. It is alleged the candiru fish is attracted to urine and is allegedly capable of swimming into the human urethra, where it becomes lodged. Nick is joined by a local expert as he observes the creature, before investigating a suspected case
Naturalist Nick Baker continues to seek out the world's strangest creatures, going on the trail of an armour-plated mammal known as the pink fairy armadillo. The team travels to the Mendoza province in western Argentina in the hope of glimpsing the rarely seen animal, following in the footsteps of Charles Darwin, who visited the area on his Beagle voyage 172 years ago
The naturalist seeks out the giant saggy-skinned frog of Lake Titicaca in South America. He begins his research at London's Natural History Museum, hoping to find the amphibian whose natural habitat is two miles up in the Bolivian Andes. The team follows in the footsteps of Jacques Cousteau, who visited the area in the early 1960s. However, finding the creature proves a mammoth task as altitude sickness slows the group down
Nick Baker travels to India to seek out the gharial crocodile, which may be descended from the baryonyx, a dinosaur with an elongated jaw whose diet also consisted of fish. The rare creature can grow up to six metres in length, and has developed a fleshy growth called the ghara, located on the end of the snout in adult males. However, the function of the odd protrusion remains a mystery
The naturalist goes in search of the basking shark - the second largest fish in the world and as long as a London bus. Cornwall is statistically the best place to spot the creature in the UK, but bad weather forces Nick and the team to follow the warm water as the shark moves north over the summer, when they are subjected to a series of bumpy rides off the coast of western Scotland
The naturalist travels to Manitoba in Canada to track down the star-nosed mole, whose 22-tentacled snout enables it to assess and devour small pieces of food in less than a quarter of a second. Nick and the team face hot, mosquito-ridden conditions as they attempt to trap the creature in its marshy habitat
Naturalist Nick Baker searches the world for the strangest animals he can find, starting with a sightless salamander known as the 'human fish'. He travels to the Postojna caves in Slovenia to find the blind, albino lizard, discovering the creature's skin is very similar to human flesh. Determined to learn more, he ventures 27 kilometres underground and camps for 24 hours in absolute darkness
Naturalist Nick Baker encounters the tarsier in the remote jungles of south-east Asia, a creature with an uncanny resemblance to the mythical gremlin. Starting in the Tangkoko nature reserve on the Indonesian island of Sulawesi, he begins his search for the elusive carnivorous primate
Naturalist Nick Baker goes in search of the alligator snapping turtle in the swamps and marshlands close to the Louisiana city of New Orleans. The creature has powerful claws and jaws and a bite that's among the most vicious in the animal kingdom, easily surviving natural threats such as hurricane Katrina
Naturalist Nick Baker visits America, where he encounters rare giant salamander the hellbender, a creature with a reputation as a poisonous menace to the local fishing industry. Starting in the Ozark region of Missouri, he investigates the causes of a severe drop in the local population, a problem which has the authorities stumped
Naturalist Nick Baker goes in search of chameleons in Madagascar, hoping to dispel some of the common myths surrounding the creatures
Naturalist Nick Baker, along with his angling enthusiast father, travels from the Withy Pool in East Sussex to the River Ebro in Spain to test his mettle against the wels catfish, known as the largest freshwater fish in the Western world
The naturalist heads to Madagascar in search of a vision from his own childhood nightmares, the rare aye-aye lemur, whose extraordinary physique is a result of unique evolutionary processes that only take place on the south-eastern African island. Despite hearing a plethora of taboos relating to the creature, Nick Baker visits the Nosy Mangabe wildlife reserve to confront his phobias
Naturalist Nick Baker travels to the Indonesian island of Sulawesi in search of the mimic octopus, a chameleonic creature allegedly capable of changing shape to camouflage itself. On his first dive into the sea he encounters a variety of other life-forms, including the Ambon scorpion fish and curiously named wonderpus photogenicus
The Leafy Sea Dragon has a jewel-like body and complex camouflage
We take a road trip through Mexico's Baja peninsula in search of the elusive Mole Lizard (a.k.a Five-toed Worm Lizard). Through its evolutionary journey it lost its rear limbs, leaving a creature that looks like part snake, part lizard and part earthworm.
The Axolotl is a type of salamander that Nick has kept as a pet for two decades. He learns about its unique biology that holds great promise for medical science, and discovers how Mexico City's development has driven this creature to the edge of extinction.
Nick travels to Australia's Red Center in search of one of the world's weirdest desert diggers, the Marsupial Mole. As temperatures in the Outback soar over 100 degrees, Nick searches for clues and looks for tracks using seismic sensing devices.
Travel to the depths of the Bornean jungle to find the only poisonous primate in the world: the Slow Loris, which lives in the towering rainforest canopy. It looks like a cuddly toy, but it carries a poison in its bite that can prove fatal.
In the Delaware Bay, Nick tracks down one of the oldest creatures on the planet: a half billion-year-old living fossil that is currently in danger. He hopes to witness one of nature's most spectacularly weird spawning events.
Luck is on Nick's side as he goes in search of the awkward middle child of anteaters, the tamandua. He also gets more than he bargained for when he stumbles across a battery of army ants.
Nick heads to a group of desert islands in Panama where strange things have been happening to the animals. He hangs out with the pygmy sloth, a species only identified in 2001, and discovers a species of frog with an identity crisis.
