Season 1

Animals with extra limbs; real-life freaks of nature.

The seven creepiest cuisines of all time.

An entire town taken over by mice. Innocent school children attacked by throngs of yellow jackets. When animals and insects come together in massive numbers, the horrifying hordes will make you wonder if the world is coming to an end.

From human copycats who've had plastic surgery to look like leopards and tigers to people who spend their days on all fours living like wild dogs, they're modern-day sideshow freaks living in the real world.

Animals get cranky too, and sometimes they take it out on the people around them. Whether it's a bird pecking pedestrians as they walk down the street, or an angry elephant, these are animals you don't want to mess with.

They call it the wild thing for a reason. From orgies to carnivorous courtship to romantic role reversal, the animal kingdom shows us a thing or two about the art of amour.

Sometimes humans take their companionship with animals a little too far. Hording a house full of kittens is one thing, but these animal lovers go to shocking lengths for their bizarre pets.

Whether it's wrangling wild animals or battling colossal creatures, our worst nightmare is their business. Dedicated animal experts put their lives on the line everyday working with the deadliest creatures in the animal kingdom.

Imagine eating two times your own weight in one bite. That's just a snack for these slithering carnivores. From golf balls to gazelles to alligators, these outrageous feasts will make your jaw drop.

Nothing warms the heart like a little interspecies love. From the orangutan that falls for a tiger to the tortoise that mothers a baby hippo, these critters find companionship in the oddest of circumstances.

A coyote makes a visit to a Chicago sandwich shop. A moose takes a dip in a suburban swimming pool. Bats take over an office building. See what happens when wild animals decide it's time for a change of scenery.

When one of these giants takes the bait, a day of fishing turns into an adrenaline-pumped fight to the finish. Rare video of some of the greatest catches caught on camera reveal titanic tugs of war and backbreaking battles of man vs. mammoth beast.

Animals grown to massive magnitudes dwarfing their own kind. From a bunny rabbit the size of a dog to a squid longer than a school bus, these massive giants are the product of limitless feeding frenzies, freak twists of nature and selective breeding.

Uncover the shocking ways animals become medicine with these killer cures. Traveling around the globe, see how different cultures approach healing with a little help from the animal kingdom.

These mammoth menageries are the world's most extreme animal assemblages. Mystifying, mind-boggling, and often inspiring, these animal obsessions challenge what it means to love too much.

From male lions brutally killing cubs for control of the pride to female spiders eating their mate during sex, these are the stories of ruthless betrayal in the violent race for survival and dominance.

These animals are the result of intensive experimentations and genetically altered super-species. Like modern day Dr. Frankenstein, some animal scientists are engineering never-before-seen creatures that boggle the mind.

Vicious attacks, ferocious free for all's, and fights to the death. Hunting, sparring or defending their turf. When animals declare war on each other, the colossal confrontations can be heinous... and hard to watch.

Whether it's lost killer whales who need to be guided home or a canine in danger of hypothermia, find out the altruistic side of man's nature through these heroic acts of intervention.

Dangerous health hazards. Ferocious ferals. Unshakable pests. Unwelcome alien species who make walking down the street a lethal obstacle course. But can they be stopped before it's too late? These are the seven most destructive animal invaders.

March with the dedicated rainforest army ants of Costa Rica, seeing them kill game many times their size, or be shocked by some of the most unforgiving chimps along the Ivory Coast. Some of these animals are able to defeat anything with their mob mentality.

Whether by accident or deliberate human intervention, video evidence of shocking animal-human encounters that make having a camera a high-risk venture for these surprising scenes caught on tape.

These animals open our eyes to uncanny agility and intelligence all too often overlooked, performing, perfecting, amazing in never-before-seen animal feats.

Whether it's a tourist who risks it all to swim with these frightening foes, or a fisherman who puts his life on the line for his livelihood, you won't be able to look away from these hair-raising shark attacks.

From facilitating elephant mating to keeping the lush field flush with blood-sucking leeches to collect the precious droppings of a feared creature of the night, you'll get behind the scenes lowdown on some of the world's most vile animal jobs.

Some are cultural phenomena still to be proven - like Bigfoot, the legendary missing link. These unconventional animals continue to full volumes of folklore and legend. These are the most renowned legendary creatures.