1. Aardvarks
   Caiman
2. Pangolins
   Bison

These scale-covered mammals are indigenous to much of Asia and parts of Africa. Despite their armored appearance, they are coveted as pets and sadly, sold on much of the black market.

1. Caterpillar
   Slug
2. Millipede
   Earthworm

Caterpillars are one of the great transformers of the animal kingdom. These marvelous creatures disappear into their cocoons and emerge as gorgeous butterflies after five to 21 days. If only they could actually grow teeth!

1. Albatross
   Falcon
2. Hare
   Quail

Quail are a staple of old-style French cuisine, although the gamey taste doesn't appeal much to modern palates. These little birds have a huge vocal range and its more likely that you'll see one than hear it!

1. Jackal
   Pika
2. Tapir
   Platypus

This toothless wonder is also the only living creature to represent its family and genus, although there have been platypus-adjacent fossils found. That makes it totally unique in the modern world!

1. Flamingo
   Parrot
2. Macaw
   Albatross

Flamingos get their beautiful hue from the copious amounts of shrimp that they eat, but they don't chew them up with their teeth! Instead, the bill of the flamingo acts like a giant, deadly tooth for scooping up their prey.

1. Centipede
   Stag beetle
2. Scorpion
   Okapi

You don't want to find one of these toothless venomous arthropods lurking in your shoe! On the plus side, scorpion venom usually can't kill a healthy human. It will just hurt a whole lot.

1. Geese
   Pigeons
2. Seagulls
   Ducks

Geese can be intimidating, especially when they're between you and your car! Although these massive birds have no teeth, they do have serrated beaks, so a peck can still break your skin.

1. Coral
   Sea urchin
2. Dogfish
   Sea cucumber

Most sea urchins are toothless, although there are some varieties that have one or two. Instead, they have something called "Aristotle's lantern"; a sharp beak that grinds food to smithereens.

1. Tapir
   Possum
2. Anteater
   Quetzal

Anteaters have no teeth. Instead, they slurp up their favorite insect snacks with large snouts and very long tongues. They generally eat up to 35,000 ants and termites every single day!

1. Seahorse
   Pufferfish
2. Sea cucumber
   Plankton

Seahorses have no teeth or stomachs, so they have to eat constantly. Without teeth, their diet is limited to tiny fish, plankton and other organisms that they can slurp up with their snout.

1. Vulture
   Wombat
2. Ibis
   Egret

Vultures are some of the most famous scavengers in the world, but they do all of their opportunistic feasting without teeth. Instead, they have sharp beaks and talons to tear apart their meals.

1. Javanese
   Monitor lizard
2. Armadillo
   Stoat

Armadillos are famous for curling up into a little ball when they're scared, and their scales give them a cute and almost friendly appearance. Don't get too comfy though! Some armadillos actually carry leprosy.

1. Owl
   Falcon
2. Eagle
   Ibis

Owls are portrayed in folklore and stories as being one of the wisest creatures on the planet, but they still don't have any teeth. These nocturnal birds use their beaks to hunt prey.

1. Stick insect
   Beetle
2. Earwig
   Flea

Most varieties of beetles don't have teeth. Instead, they have sturdy mandibles that are used to chew food and can inflict a sharp rebuke to any unlucky humans who cross or surprise them.

1. Egret
   Albatross
2. Macaw
   Falcon

Falcons don't have teeth, but they do have a razor-sharp beak that can catch and tear apart prey. Getting pecked by a falcon is not fun, so people who handle these birds wear thick gloves.

1. Bee
   Fly
2. Mosquito
   Fire fly

Bees are notorious for their potent stings, but they don't have any teeth. Instead, they have hard mandibles for chewing and a long proboscis to suck up sweet nectar from flowers.

1. Sea sponge
   Squid
2. Pika
   Crab

No crabs have teeth, but some have harder mandibles than others with which to grind up their food. Some crabs even have feather-like mouthparts. That doesn't seem too evolutionarily sound!

1. Eagle
   Peacock
2. Ibis
   Sparrow

Peacocks are known as nature's show-offs. These beautiful birds have jewel-toned feathers that they fluff out when they want to attract a mate since they can't use their winning smiles.

1. Toad
   Tree frog
2. Gecko
   Dugong

Unlike their amphibious frog cousins, toads don't actually have any teeth. Both types of animals swallow their food whole, but most types of frogs have a small ridge of teeth on the tops of their mouths.

1. Penguins
   Albatrosses
2. Seagulls
   Herons

Penguins are one of the most beloved birds in the world. In addition to being featured in folklore and pop culture, these toothless cuties are just plain adorable when they waddle over rocks.

1. Flies
   Ladybugs
2. Fleas
   Mosquitoes

No flies have teeth, but certain types have sharp mouthparts that act a lot like teeth. Deer and horseflies can break the skin, and an encounter with one is almost certainly painful.

1. Angelfish
   Goldfish
2. Pufferfish
   Minnows

Whether or not goldfish have no memory is debatable in the scientific community and we certainly can't ask them. What we do know is that these cherished pets do not have any teeth.

1. Ibis
   Parakeet
2. Okapi
   Ostrich

Ostriches may not have teeth, but they certainly can pose a threat to humans. These flightless birds can run fast, are highly aggressive, and have sharp talons that could do a number on you.

1. Louse
   Ladybug
2. Kissing bug
   Booklice

Ladybugs are the most beautiful of all of the beetles. With their red and black spotted shells, these pretty, toothless insects are considered to be good luck in many parts of the world.

1. Baleen whales
   Dolphins
2. Narwhals
   Nurse sharks

Most whales don't have teeth, and the baleen whale is no exception. Instead of chompers, this animal has the equivalent of giant combs that hang down from its mouth, the better to suck in food.

1. Lobster
   Soft-shelled crab
2. Prawn
   Crawfish

Lobsters don't have teeth as we do, but they do have something that resembles teeth. Deep within their stomach is a terrifying sounding "gastric mill" that processes all of their food.

1. Sea turtle
   Snapping turtle
2. Tortoise
   Mud turtle

Like most turtles, sea turtles don't have any teeth. Instead, they have a tough beak to defend them against predators and help catch prey. In green sea turtles, this beak is serrated.

1. Swans
   Loons
2. Ducks
   Herons

Ducks don't have teeth, but they do have a serrated portion of their bill that acts as a defense mechanism and can help them ingest their food. If threatened, ducks will attack humans.

1. Oysters
   Clams
2. Mussels
   Sea sponges

Oysters don't have any teeth, but they do have socket-type pouches that look like they were made for teeth. Remarkably, other types of shellfish can sometimes have teeth, but oysters lost the evolutionary lottery.

1. Donkey
   Goat
2. Buffalo
   Lamb

Lambs technically have teeth, but they are all congregated in the backs of their mouths. They are born with eight "milk teeth," but use the hard mandible on the front of their mouths to chew.

1. Scallops
   Starfish
2. Sea sponges
   Coral

Starfish don't have teeth, but they do have plenty of spines that they will use for defensive purposes if threatened. Starfish take the direct route and eat with their stomachs; no teeth required!

1. Centipede
   Millipede
2. Silkworm
   Common snake

Centipedes don't have teeth, but some of them do have front legs that they can fashion into fangs. In certain parts of the world, centipedes are venomous and can be very dangerous to humans and pets.

1. Egret
   Condor
2. Eagle
   Albatross

Eagles are known as the all-American bird, but these majestic creatures don't have any teeth. Instead, they have a large, hooked bill that they use for both defense and finding prey.

1. Swan
   Dove
2. Thrush
   Stork

Swans dine on algae, small fish and worms, and they do so with style, grace and no teeth. Their bills are serrated, so they can inflict a sharp semblance of a bite if confronted.

1. Fleas
   Wasps
2. Aphids
   Mayflies

It's a common myth that wasps have teeth because these are one of the only insects that can hurt you from both the front and back ends of their bodies, but they don't. They have hard mandibles that act like teeth.

1. Blue jay
   Finch
2. Heron
   Parrot

Parrots are known to mimic the words of their owners, and many are cherished pets all over the world, but these loquacious birds actually have no teeth. Instead, they have sharp beaks.

1. Carp
   Minnow
2. Catfish
   Angelfish

Minnows technically have teeth deep in their throats, which makes them unique in the world of aquatic creatures. They suck their food down and grind it up once it reaches their gullets.

1. Macaw
   Robin
2. Hummingbird
   Toucan

Toucans are famous for their stunning plumage and massive beaks. Since they have no teeth, they've developed an ingenious method of eating large pieces of fruit by tossing them in the air and smashing them on their beaks.

1. Bulls
   Cows
2. Bison
   Horses

Cows are famous for chewing their cud, but they don't do it with teeth! These animals have a hard plate that allows them to grind grass into mush. Technically, they do have a few back incisors, but they're totally toothless in the front!

1. Chicken
   Wren
2. Turkey
   Guinea Hen

Chicken is a menu favorite all over the world, and many people have a few feisty hens and roosters running around on their farms. These toothless birds eat by pecking with their beaks.