Do Snails Have Teeth? Chompers in a Shell

Do Snails Have Teeth

Do Snails Have Teeth? Chompers in a Shell

Ever gazed at a snail and wondered about its diet? It’s hard to imagine these slow movers having anything to munch with. Surprisingly, snails have teeth, and their dental structure is quite a marvel of nature.

Snails have teeth that grow in rows around their tongues. Garden snails have an average of 14,000 teeth, while other species can boast up to 20,000. Slugs take the cake with 27,000 teeth. To top it all, the teeth of aquatic snails are made of the strongest biological material known to man.

This article explores the snail and its wondrous teeth. If you like your science gross and slimy, it is time we both took a dive into a major gastropod conundrum.

Why Do Snails Have That Many Teeth?

SEM image of central radular teeth
Image Source: Natural History Museum

Have you ever wondered why snails have thousands of teeth when humans get by with only 32? It’s a curious question, and the answer is just as fascinating. So, let’s delve into the world of snails and their teeth.

Related Reading: Can Snails Eat Grapes? The Snail Owner’s Guide to Food

First things first, let’s talk about snails’ eating habits. Unlike most animals, snails are not picky eaters; they’ll eat almost anything. Snails are detritivores, which means they eat the decaying waste of either animal or plant origin. They are also herbivores and carnivores, making them omnivorous.

This flexibility in their diet has allowed them to survive in many different environments, from freshwater to saltwater and from the forest floor to deserts.

Now, back to their teeth. Snails’ teeth are not like ours; they are tiny, sharp, and arranged in rows on a ribbon-like structure called a radula. The radula acts like a conveyor belt, carrying food toward the snail’s digestive system. As the radula moves back and forth, the teeth scrape against the food, breaking it down into smaller pieces.

But why do snails need so many teeth? The answer lies in their diet. Snails and slugs need to be able to break down tough materials like plant fibers and even the calcium-rich shells of their prey. Their teeth allow them to grind and crush their food until it is soft enough to swallow.

Do Snails and Slugs Chew Food as Other Animals Do?

Watch this video to see how the radula moves when snails are chewing their food.

Snails and slugs have thousands of teeth but do not use them to chew their food. Instead, these fascinating creatures use their tongues to slowly scrape off the softest parts of the food. This process creates tiny pieces of food that the snail or slug can swallow.

So, what is the purpose of all those teeth? Snails and slugs have a specialized structure in their mouth called a radula. Unlike most animals, whose teeth grow on their gums, a snail’s and slug’s teeth grow in organized rows on the radula.

Each row has about a hundred teeth; therefore, the radula must hold as many rows as possible to accommodate the staggering number of teeth these animals need. For instance, a snail can have up to 14,000 teeth, while a slug can have up to 27,000.

Microscopic images of a snail’s radula reveal a fascinating pattern resembling a hand-woven carpet. Each tooth protrudes conically on the radula, with a characteristic sharpness, thinness, and small hook toward the edge. The combination of 14,000 such teeth is enough to create the roughest surfaces that can scrape off even the toughest food substances to smithereens.

The Intriguing Sound of Snail Eating

The fascinating story of the sound of a snail eating is not only captivating but also inspiring. Elisabeth Tova Bailey’s journey with a snail began when she fell ill while traveling in Europe.

During her long months of confinement, she found herself searching for ways to alleviate the boredom and loneliness that came with being bedridden. Little did she know that a simple suggestion from a friend would lead to a life-changing experience.

Initially, Elisabeth was skeptical about keeping a snail by her bedside. However, as time passed, she began to observe its behavior and was amazed by what she discovered.

As a nocturnal creature, the snail was active at night, allowing Elisabeth to witness its feeding habits. Elisabeth was surprised to learn that snails make a distinct sound when eating.

She could hear the snail crushing the celery stem that had been offered to it for dinner. This discovery was a revelation to her and sparked her interest in observing the snail’s behavior even further.

In her book, The Sound of a Wild Snail Eating, Elisabeth documented her findings, noting the routine the snail had before eating.

The Sound of a Wild Snail Eating
  • Bailey, Elisabeth Tova (Author)
  • English (Publication Language)
  • 208 Pages – 09/06/2016 (Publication Date) – Algonquin Books (Publisher)

The snail routine involved the following:

  1. The snail would wake up.
  2. The snail would move to the rim of the glass bowl.
  3. The snail would then survey its surroundings with its tentacles.
  4. The snail would finally wave the tentacles around before settling down to eat.

The sound of the snail tearing and ripping the celery into tiny pieces became a soothing distraction for Elisabeth and helped her to heal during her illness.

For those of us who are fascinated by snails, this first-hand account of a snail’s night-time eating habits is a rare and remarkable insight into the world of these fascinating creatures. It is a reminder that even the most mundane creatures can hold hidden wonders and mysteries waiting to be discovered.

What Happens to the Teeth From All That Scraping?

Snail teeth are an incredible marvel of nature. Scientists have found that they are made of nanofibers covered in an enclosing containing proteins and iron crystals, which makes them the hardest substance on earth.

Even with all that scraping, snails never run out of teeth because they have a unique tooth-replacement system. Unlike adult humans, who lose their teeth permanently due to tooth decay, a snail can replace a destroyed tooth.

In her book, Elisabeth Bailey documented how her companion snail grew fresh teeth when worn out. The snail grew another row at the back, and the radula moved forward to allow a complete replacement that lasted about four to six weeks.

Imagine having a tooth-replacement system like snails! It’s incredible how nature has evolved such a system that ensures that snails always have new teeth.

It’s not hard to see why one might envy these creatures and wish to belong to a species with a natural tooth-replacement system instead of relying on a fully-developed dental profession.

Are We Safe Around Snails With Their Magic Teeth?

Watch this video to learn about the deadly teeth of cone snails, one of the deadliest sea snails.

Have you ever wondered if snails could bite? The answer is yes, they can, and their bite can be dangerous. In fact, one bite of a cone snail is strong enough to kill 700 people.

While garden snails may not pose a significant threat to humans, the same cannot be said for largely predatory sea snails. Sea snails have a proboscis specifically designed for spearing and envenomating fish and other sea foods.

Upon contact with the fish, the proboscis releases venom, which paralyzes and renders the prey helpless in front of the tiny, slimy mollusk. As a result, people should be wary of such poisonous snails, particularly given that snails are not picky eaters.

It’s a little unnerving to think about, but it’s essential to recognize the risks posed by venomous snails. That said, don’t let this deter you from spending time in nature and observing these fascinating creatures. Just be cautious and avoid handling them if you come across them in the wild.


It’s amazing how much these small creatures can pack into their tiny bodies. Snails and slugs may not be the first animals that come to mind when you think about impressive abilities, but they deserve recognition.

With hundreds or even thousands of teeth in their radula, these little gastropods can scrape and chew through almost anything. And let’s not forget about the occasional defensive bite.

So next time you see a snail or slug, take a moment to appreciate their incredible abilities. And if you’re ever walking on seawater, don’t forget to wear your water shoes to be safe.  

Frequently Asked Questions

How many teeth can snails have?

Some species of snails can have over 20,000 teeth, while a garden snail typically has about 14,000 teeth. Snail teeth are arranged in rows on a flexible ribbon called a radula, which the snail uses to scrape and cut its food.

Do snails really have 14000 teeth?

Garden snails typically have around 14,000 teeth on their radula, while some species of marine snails can have over 20,000 teeth. The number of teeth varies depending on the species and their feeding habits. Still, snails generally have many tiny teeth on their radula that help them to consume food.

Are snails’ teeth strong?

Snail teeth comprise a composite material of goethite nanofibers encased in a protein matrix. This unique composition makes them surprisingly strong for their size and allows them to grind easily through tough materials such as plant fibers and calcium carbonate shells.

Where are snails’ teeth?

Snail teeth are located on a ribbon-like structure called a radula found inside their mouth. The radula is covered in rows of tiny teeth used to scrape and grind food before entering the snail’s digestive system. Snails have thousands of teeth on their radula that are continually replaced throughout their lifespan.

Do snails have mouths?

Snails have mouths that are located on the lower part of their head. The mouth is the entry point for food into the snail’s digestive system. It is equipped with a muscular structure called a radula, which is covered in rows of tiny teeth used for scraping and grinding food.



  • Paul Odoteh

    Paul Odoteh is an established writer and editor with nearly 10 years of experience in writing and editing. He holds a bachelor's degree in IT and has written for numerous publications and individuals. Currently, Odoteh is dedicated to expanding his blog,, which was inspired by his passion for owning an aquarium.

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