• Alamy
    1 of 25

    Think you know every critter in the animal kingdom? Think again. Test your species smarts and see if you recognize some of the weirdest-looking animals from around the globe.

    JUMPING SPIDER

    Family: Salticidae

    Habitat: Forests throughout the world

    Fun Fact: Jumping spiders in Cuba have been known to dance the rumba!

  • MBARI
    2 of 25

    PIGBUTT WORM

    Family: Chaetopteridae

    Habitat: Deep seas

    Fun Fact: Researchers believe this creature may be the larva form of another, but still need more time to study the relatively new species. 

  • Alamy
    3 of 25

    HOODED SEAL 

    Family: Phocidae

    Habitat: Northern Atlantic Ocean 

    Fun Fact: Male hooded seals have an inflatable bladder located on top of their head. 

  • Chris Allen/EOL
    4 of 25

    BONE-EATING SNOT FLOWER

    Family: Siboglinidae

    Habitat: Deep ocean waters

    Fun Fact: These sea creatures bore through the bone of whale carcasses to feast on the lipids inside. 

  • NPS
    5 of 25

    GUINEAFOWL PUFFER

    Family: Tetraodontidae

    Habitat: Eastern Pacific Ocean 

    Fun Fact: This puffer sports impressive buck teeth.

  • Hugo Claessen/Wikimedia
    6 of 25

    SURINAM TOAD

    Family: Pipidae

    Habitat: Forests and marshes in South America

    Fun Fact: This toad has no teeth or tongue. 

  • snowmanradio/flickr
    7 of 25

    TAWNY FROGMOUTH

    Family: Podargidae

    Habitat: Mainland Australia 

    Fun Fact: Tawny frogmouth owls mate and stay together until one dies, constantly repairing their nest for new children.

  • Public Domain
    8 of 25

    ALMIQUI

    Family: Solenodontidae

    Habitat: Forests of Cuba

    Fun Fact: The Almiqui is one of the few mammals with venomous saliva. 

  • Brittany Steff/Smithsonian's National Zoo/facebook
    9 of 25

    TENTACLED SNAKE

    Family: Colubridae

    Habitat: South East Asia

    Fun Fact: Tentacled snakes can stay underwater for up to 30 minutes before coming up for air. 

  • Jurgen Appel/Wikimedia
    10 of 25

    PINE PROCESSIONARY

    Family: Thaumetopoeidae

    Habitat: Woods of Southern Europe

    Fun Fact: As a caterpillar, these moths move through the woods in nose-to-tail lines. 

  • Wikimedia
    11 of 25

    COOKIECUTTER SHARK 

    Family: Dalatiidae

    Habitat: Tropical ocean basins

    Fun Fact: This shark gets its name because it eats by taking small pieces from various animals. 

  • EOL Learning and Education Group/Wikimedia
    12 of 25

    GREEN SEA SLUG 

    Family: Plakobranchidae

    Habitat: Tidal marshes 

    Fun Fact: Green sea slugs are hermaphrodites, but rarely self-fertilize. 

  • Wikimedia
    13 of 25

    LONG-EARED JEROBA

    Family: Dipodidae

    Habitat: Southern Mongolia 

    Fun Fact: The jerobas locate insects by performing a series of fast leaps and listening for the bugs' movements. 

  • NOAA
    14 of 25

    GLASS SQUID

    Family: Cranchiidae

    Habitat: Deep sea 

    Fun Fact: Many glass squids are bioluminescent. 

  • Michal Manas/Wikimedia
    15 of 25

    LEOPARD SLUG

    Family: Limacidae

    Habitat: Throughout Europe

    Fun Fact: These slugs mate in mid-air while hanging from a thick thread of mucus. 

  • NOAA
    16 of 25

    OCEAN SUNFISH

    Family: Molidae

    Habitat: Tropical waters worldwide

    Fun Fact: The female sunfish produces more eggs than any other vertebrate. 

  • Katka Nemcokova/Wikimedia
    17 of 25

    AMAZONIAN GIANT CENTIPEDE

    Family: Scolopendridae

    Habitat: Rainforests of South America

    Fun Fact: These insects can grow to be over 12 inches long. 

  • Alamy
    18 of 25

    VIOLET SEA SNAIL

    Family: Muricidae

    Habitat: Saltwater worldwide

    Fun Fact: These underwater snails travel upside down. 

  • Alamy
    19 of 25

    GEODUCK

    Family: Dalatiidae

    Habitat: Northwest coast of the United States 

    Fun Fact: Geoducks are one of the longest-living organisms in the world. 

  • Greg Hume/Wikimedia
    20 of 25

    HONEYPOT ANT

    Family: Formicidae

    Habitat: Throughout Australia 

    Fun Fact: These ants store honey inside their bodies to be used as living storage. 

  • Alamy
    21 of 25

    BLANKET OCTOPUS

    Family: Tremoctopodidae

    Habitat: Tropical ocean waters

    Fun Fact: A blanket octopus is immune to the stings of a Portuguese man o' war jellyfish. The creature will actually rip off the jellyfish's stingers and uses them as weapons. 

  • Davehood/Wikimedia
    22 of 25

    TARANTULA HAWK

    Family: Pompilidae

    Habitat: Worldwide

    Fun Fact: This insect catches tarantulas and lays an egg in their abdomen, so when their child is born it immediately has something to eat. 

  • Haplochromis/flickr
    23 of 25

    MIMIC OCTOPUS

    Family: Octopodidae

    Habitat: Bays of Indonesia and Malaysia 

    Fun Fact: This octopus can mimic 15 different sea creatures through arm and body contortion. 

  • Peter Ellis/Wikimedia
    24 of 25

    ALBERT'S LYREBIRD

    Family: Menuridae

    Habitat: Rainforests of Australia

    Fun Fact: The Albert's lyrebird builds platforms to do its courtship displays on.

  • USDA
    25 of 25
    Next: More Crazy-looking Creatures

    ANT DECAPITATING FLY

    Family: Phoridae

    Habitat: Tropical Area Worldwide 

    Fun Fact: This bug gets its name because it lays its eggs in the thorax of fire ants, which eventually causes the ant's head to fall off.