Fun Facts About Animal Teeth

Teeth are important for both humans and animals! We use our teeth to eat, speak and show that we are happy. Animals can use their teeth not only to eat, but also to groom themselves, carry their young, defend themselves, and build their homes! Here are some interesting facts about animals and their very important teeth:


Do birds have teeth? Well... not really. But this species of toucan called a Collared Aracari sure looks like he does!

Collared Aracari and his fierce looking "teeth".

Toucans and other species of birds like the Gray Goose have serrations (jagged edges) on their beaks that help them grip their prey. These aren't really like the teeth that mammals have—they're more like the "teeth" on a saw or a comb.

This Gray Goose has a serrated bill and barbs on his tongue that look like teeth but really aren't.

Some birds, like the King Penguin, have spine-covered tongues and upper palates* that hold wiggly fish in place. Unlike our teeth, the spines are pointed backward and work like barbs to keep food going in the right direction—down their throats!—since most birds swallow their food whole.

*Your upper palate (the roof of your mouth) is smooth and made of soft tissue. Did you know the skin on your palate and tongue can be a hiding place for germs? It's important to brush your tongue and use mouthwash or swish with water after brushing to make sure your entire mouth is clean!

This King Penguin keeps fish from slipping out of his mouth with spines on his tongue that sure look like teeth!

Baby birds can also have tiny barbs in their mouths (like these baby Cardinals on the left) and most have an "egg tooth" at the tip of their beaks to help them crack their shells when they are born!

Even baby birds can appear to have teeth...but they don't really.

Birds of prey, like the Common Kestrel Falcon we have pictured, may have a sharp “tomial tooth” to sever their prey’s vertebrae. These aren't really like our teeth since they're not coated in enamel.

Do snails have teeth?

Snails may look soft and squishy but, believe it or not, they can have up to 14,000 teeth! (That means it takes them 5 1/2 hours to floss every day! 😉 ) Check out this video of a super cool GIANT African Land Snail:

Having trouble viewing this video? Click here to watch it on YouTube.


Elephant tusks are modified incisors* that replace milk teeth when the baby elephant is between 6 and 12 months old. After this, their tusks grow about 6 1/2 inches each year! African elephants have tusks in both males and females, but in Asian elephants, only the males have large tusks while the females have very small ones or no tusks at all. Tusks are used for defense, digging for food and water, and carrying and lifting.

*Your incisors are the teeth at the front of your mouth, four on top and four on the bottom, that are used for biting through crunchy apples and carrots! Learn more about the different kinds of teeth you have by clicking here.

Unlike humans, whose teeth are pushed up through the gums, an elephant’s teeth are developed from the back and push forward. An elephant has 6 sets of molars during their lifetime. As each tooth wears out through grinding, another tooth moves forward to replace it. A single elephant molar can weigh up to 5 pounds! In captivity, mature elephants are trained to open wide so their keepers can keep their teeth healthy since an elephant with unhealthy or missing teeth will starve to death.



Puppies lose their baby or milk teeth over a matter of weeks—not years like human kids. Puppies have about 28 teeth that fall out by the time they’re about 6 months old to make room for 42 adult teeth. That’s 10 more teeth than people have!

A dog’s teeth are like human teeth in that they have layers: pulp in the middle, surrounded by dentin and coated in hard enamel (the white part of your teeth that you can see.) But dog teeth and people teeth are not shaped the same. Our molars are designed to grind against each other to smash up our food. But a dog’s large, upper premolars and lower molars work together like scissors to slice food apart.

An adult dog's teeth work together to slice through meat. Do you see the cavity forming on this dog's teeth?

Dogs don’t usually get cavities because the bacteria that cause cavities in human mouths (that love to feed on sugar!) don’t typically live in dogs’ mouths. When dogs do get cavities, it’s usually from eating sweet treats like bananas or sweet potatoes.

You need to take care of your dog’s teeth. They can get gum disease, which can lead to tooth loss (just like in people!) Look for plaque build-up on their teeth and brush it away with a toothbrush and toothpaste made especially for dogs! Dog dental treats or chews can also help keep your dog’s teeth healthy.


These soft cuties also have interesting teeth! By about 4 months old, kittens have already replaced their baby teeth with 30 adult teeth! Since cats are carnivores (meat-eaters), they only have pointy and serrated teeth to clean meat off bones. Their front incisors are mainly used for grooming their fur, not eating.

Cats get cavities too—and they hurt as much as human cavities. They usually start below the gum line, so it's important to get regular check-ups at the vet. You may need to brush your cat's teeth to keep them healthy!

Click here to read more about cat teeth.


Take a bite out of these fun facts about this giant kitty's teeth! Tiger cubs are born without teeth but their tiny milk teeth come in after only a few days. They'll be pushed out by their permanent teeth so they're never missing any.

Healthy adult tigers have 30 teeth and a large gap between their pointy front teeth and their back molars. This helps the tiger really latch onto their prey!

A tiger's jaw can only move up and down, not from side to side, helping them exert up to 1,000 pounds of pressure when they bite! Aren't you glad you're not tiger prey?

For more facts about tiger teeth click here.

Rabbits & Squirrels

These adorable, fuzzy cuties are herbivores, so they don't have canine teeth. Instead, they have six incisors in the front that work like scissors to cut up grass, and 22 molars in the back that grind up food.

Unlike people, rabbit teeth are not protected by enamel and wear down easily. As a result, their teeth are continually growing. They can grow 3-5 inches each year! If a bunny isn't fed the right amount of fibrous foods like grass and hay, their teeth can grow too long and cause major oral health problems that make it difficult to eat.

This pet bunny wasn't fed the proper food. A vet will have to fix his teeth, which have grown too long.

Squirrels have four front teeth that, like rabbits and other rodents, continue to grow for their whole life. This keeps their teeth from wearing out as they gnaw on nuts, pine cones and bark. Sometimes the front teeth of a wild squirrel will not line up like they should. They will keep growing until the squirrel cannot eat anymore and the squirrel starves to death. 😢

When our teeth don't line up the way they should it can be difficult to take care of them, chew, or speak properly. Luckily, unlike squirrels, people can go to an orthodontist to get braces!

Did you know long-tailed macaques teach their young offspring how floss their teeth with strands of hair?! It's true!

Having trouble viewing this video? Click here to watch it on YouTube.

If baby monkeys can learn to floss, so can you! Click here for flossing tips.

Alligators and Crocodiles

An adult alligator has between 74 and 84 teeth in its mouth. Alligator teeth aren’t very sharp so they have to bite down very hard to make up for it. If an alligator loses a tooth, a new one will take its place—producing up to 3,000 teeth in a lifetime!

Crocodiles have between 60-110 teeth—and they’re very sharp! Crocs use their sharp teeth to tear apart flesh and swallow large chunks. A crocodile can replace each of its teeth up to 50 times and can go through 4,000 teeth in its lifetime. (That’s A LOT of visits from The Tooth Fairy!)

Crocodiles can’t sweat. Instead, they open their mouths wide to exhale heat, similar to the way a dog pants to cool down. When the Nile Crocodile does this, a small bird called a Plover bird flies inside the croc’s mouth to eat the bits of meat lodged around and between its teeth. The Plover gets a free meal and the croc gets a dental cleaning!

Since Plover birds don't clean human teeth, you'll need to brush yours two times for two minutes every day. Be sure to visit your dental office two times every year too. The dental hygienist will give your teeth an extra good cleaning and make sure your gums are healthy too!

The Nile Crocodile has been measured to have the most powerful bite in the world—exerting up to 5,000 pounds of pressure per square inch. This is 10 times more pressure than the feared great white shark!


All snakes have teeth, but only venomous snakes have fangs to inject venom into their prey. These fangs work like the hollow hypodermic needles used to give shots at the doctor's office.

Not all venomous snakes are deadly. This parrot snake (below) has venom that causes pain near the bite and swelling that goes away after a few hours.

Learn more interesting facts about snake teeth by clicking here.


Cows have no upper front teeth. To chew they press their bottom teeth against their hard palate. They eat for about 8 hours a day!

Did you know the cheese we make from cow’s milk helps protect our teeth from harmful acid and causes more cleansing saliva for fewer cavities? It’s true! In fact, there are lots of foods that will help keep your teeth healthy. Read about them by clicking here.


Baby sharks are born with a complete set of teeth, which means they should visit the shark dentist right away! Baby humans should visit the dentist as soon as their first teeth emerge or by their first birthday (whichever comes first!)

The shark dentist is in:

Having trouble viewing this video? Click here to watch it.

Each type of shark has a different shaped tooth depending on what they eat. Shark teeth don’t have roots like our teeth do, so they fall out easily while the shark is eating. On average, sharks lose about one tooth per week. However, because sharks grow teeth much like a conveyer belt in rows, each tooth can be replaced within a day! Most sharks have 5-15 rows of teeth, except for the most dangerous shark in the world—the Bull Shark can have up to 50 rows. Yikes!

Sharks never run out of teeth. A shark may grow as many as 20,000 over its lifetime!

Shark teeth are covered in fluoride, the same ingredient in toothpaste that helps to keep teeth strong, making them naturally resistant to cavities. (Your teeth aren't! So be sure to brush with fluoride toothpaste two times every day.)

The upper jaw of the white shark is able to come unhinged from the skull and move forward! See their bite in action here:

Having trouble viewing this video? Click here to watch it.

Find more fun facts about shark teeth by clicking here.

We hope you found these facts about animal teeth as fascinating as we did! Remember—just like animals need teeth to survive in the wild, you need to take care of your teeth to be healthy and to be able to eat healthy foods. Remember to brush two times for two minutes every day. Floss between your teeth every day and rinse with water or mouthwash to clean the soft parts of your mouth too!

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