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All Seasons

Season 1

  • S01E01 Freaks in the Ocean

    • March 7, 2011
    • National Geographic

    Sea slug orgies; hermaphrodite flatworms; fish that walk on land and lizards that walk on water— dive in with the World's Weirdest underwater creatures. Flounders have a migrating eye that moves to one side of their face, enabling them to lie flat on one side for hunting. And a mimicking octopus not only changes colors but can emulate anything from rocks to snakes.

  • S01E02 Freaks on Land

    • March 7, 2011
    • National Geographic

    Some creatures are so bizarre they defy imagination. Komodo dragons use a sixth sense — a smell-o-vision from the roof of their mouth to seek out prey, and cannibal black widow spiders sense movement with their feet. The female preying mantis bites off her mate's head during sex, while the horned lizard shoots blood out of its eyes in self-defense. And hedgehogs will munch on cigarettes and bathe in oil in order to be crossed off the menu for predators.

  • S01E03 Freaks of the Sky

    • March 7, 2011
    • National Geographic

    The sky isn't just for the birds — some of the world's strangest animals don't need wings for takeoff. Flying squirrels are more like paper airplanes, with built-in evolutionary parachutes. Asian carp spring from the water at velocities known to knock people out and break noses. Certain snakes don't just slither, they fly, gliding across the canopies as they transform their bodies to create lift. And meet a real vampire — a bat that won't last two days without drinking blood.

Season 2

  • S02E01 Strange Love

    • May 6, 2012
    • National Geographic

    Forget holding hands — in the natural world, you've got to tap into your inner weirdo to make the sparks fly and raise a new generation. Nat Geo WILD delves into the Strange Love of the animal kingdom. Take a closer look at the bizarre ways animals find a mate, see the weird ways animals have developed when it comes to producing offspring and explore the unconventional ways of raising young in the animal kingdom.

  • S02E02 Bizarre Battles

    • May 13, 2012
    • National Geographic

    In the fight for survival, almost anything can happen — and nature's battlefields are filled with freaks. World's Weirdest takes a closer look at the bizarre ways animals protect themselves as Nat Geo WILD goes inside the stealthy strategies and unlikely weapons used in the natural world. Embed with a prairie dog colony that operates like a military command center, see a cobra spews deadly venom up to 10 feet, and witness an anteater use its strong tongue to consume up to 30,000 insects a day.

  • S02E03 Almost Human

    • May 20, 2012
    • National Geographic

    Nat Geo WILD looks at the line that separates people from the animal kingdom — and the similarities are downright weird. Bees on the hunt for sugary nectar can become drunk off of fermented tree sap. Meet unlikely animal role models, including male pigeons who will shoo away interested females who are not their life partners. And explore the way animals, like people, can self-medicate — a person might take an aspirin, but many animals turn to mud to sooth ailments.

  • S02E04 Freaky all Stars

    • May 27, 2012
    • National Geographic

    A collection of strange creatures including toads that explode, koalas with a disgusting diet, and baby birds that defend themselves by vomiting.

Season 3

  • S03E01 Oddities

    • April 10, 2013
    • National Geographic

    Stunning mutations, shocking survivors and freakish feats, all caught on film. These stories are so bizarre that they seem impossible, meet the weirdest oddities of the animal world. In California, one family’s pet lizard gains local notoriety for having two heads.

  • S03E02 Sneak Attacks

    • April 17, 2013
    • National Geographic

    Witness freak encounters, unexpected assaults and killer animal instincts -- these are the world's weirdest sneak attacks. In South Africa, a cyclist is suddenly slammed by an antelope traveling at 30 mph. In North Carolina, a 250-lb gator wanders into a highway ditch and the relocation efforts are disastrous. Other encounters include a 24-foot-long anaconda loose in a town and a man who discovers how agonizing it can be to have a fish burrow into your urethra.

  • S03E03 Animals Behaving Badly

    • April 24, 2013
    • National Geographic

    Cameras roll as unsuspecting animals are caught behaving badly. From indiscriminate mating to animals on the loose, some creatures cannot be tamed. Meet a male deer who, driven by his raging hormones, desires a lot more from a girl who approaches to take a picture with him. When a black bear's cub gets stuck in a garage, the mother desperately tries to claw her way through the door. And go for a safari where a hippo smashes into a jeep and makes the family fear that it will attack again.

  • S03E04 Freaky Eats

    • May 1, 2013
    • National Geographic

    Freaky Eats whets viewers' appetites for some stomach-churning animal meals. From fecal foraging to postcoital snacks and strange local delicacies, see how animals -- and humans -- go to any lengths to get fed. Bird watchers at a lakeside park are shocked to see a pelican swallow a one-pound pigeon whole. And consuming raw toads could have deadly consequences, but that doesn't stop one courageous foodie from snacking on the exotic delicatessen.

Season 4

  • S04E01 Animal Einsteins

    • January 3, 2014
    • National Geographic

    Billions of years of evolution and more than 1 million species of animal have created very weird world and some very bizarre body parts. From sex-crazed slugs to Kung Fu crustaceans, from blood-firing lizards to zombie snails, we journey from the ocean depths to deserts and tropical rainforests to reveal that for some creatures, the truth really is stranger than fiction. We showcase some of the strangest, most shocking animal appendages on the planet, and uncover their evolutionary advantages.

  • S04E02 Extremities

    • January 10, 2014
    • National Geographic

    A look at unusual animal body parts that have evolved in nature.

  • S04E03 Friends with Benefits

    • January 24, 2014
    • National Geographic

    Animals participate in seemingly taboo behavior in order to survive. Included; chimpanzees trade sex for food, a garter snake group gets entangled in an orgy; a spider feasts on her mate while coupling; a penguin trades her body for stones.

  • S04E04 Creepy Cures

    • January 25, 2014
    • National Geographic

    Exploring the medicinal value of different animals.

  • S04E05 Happy Hour

    • January 31, 2014
    • National Geographic

    Intoxication in the animal kingdom is explored. Included: elephants that get drunk; lemurs high on bugs; jaguars hunting while 'tripping' on psychedelics.

  • S04E06 Bizarre Babies

    • February 7, 2014
    • National Geographic

    Adaptations made to protect animal offspring from their predators are explored.

  • S04E07 Funny Farms

    • February 14, 2014
    • National Geographic

    Unique farms and farm techniques are featured. Included: spider goats; elephants; leeches.

  • S04E08 Swingers

    • February 21, 2014
    • National Geographic

    Peculiar animal behaviors related to gender and sex are explored. Included: gender bending; same sex intercourse; sexless reproduction.

  • S04E09 Animal Apocalypse

    • February 28, 2014
    • National Geographic

    Strange animal behaviors and mass deaths are explored. Included: hordes of mice; beached whales; flightless birds; exploding frogs.

Season 5

  • S05E01 Mutants

    • September 11, 2015
    • National Geographic

    The Season 5 premiere examines animals that have adapted in order to survive. Included: the moray eel that has evolved a second set of teeth to help swallow; the Komodo dragon that kills using bacteria; and sand tiger sharks who eat their siblings in the womb.

  • S05E02 Survival of the Strangest

    • November 10, 2015
    • National Geographic

    A look at beavers building emergency bunkers and spiders preparing traps to catch their next meal.

  • S05E03 Sharks!

    • September 25, 2015
    • National Geographic

    Sharks are one of the oldest species on the planet, so they have had plenty of time to evolve and develop some of the weirdest and most diverse skills and survival tactics. Discover the odd behaviors of sharks of all sizes, from the vicious hunters to the scrappy bottom-feeders, as they have never been seen before.

  • S05E04 Meet the Parents

    • October 2, 2015
    • National Geographic

    Parenthood practiced by naked mole rats and egrets.

Additional Specials

  • SPECIAL 0x1 Weird Weapons

    • November 13, 2019
    • National Geographic

    Life is weird when birds swim, snakes fly, and lizards shoot poisons out of their eyes. This episode is a remix of segments from other episodes.

  • SPECIAL 0x2 Bizarre Breeding

    • November 13, 2019
    • National Geographic

    Get ready for alien romance, bizarre breeding and crazy concepts in parenting. This episode is a remix of segments from other episodes.

  • SPECIAL 0x3 Survival of the Weirdest

    • November 20, 2019
    • National Geographic

    These creatures prepare for just about anything in some of the world's weirdest ways. This episode is a remix of segments from other episodes.

  • SPECIAL 0x4 Freaky Feeding

    • November 20, 2019
    • National Geographic

    The grossest gourmet food nature has to offer is presented. This episode is a remix of segments from other episodes.