The Function of a Mole’s Teeth

As we observe the marvels of nature, we can’t help but be struck by the extraordinary creatures that inhabit our planet. One of the most fascinating is the mole, which is equipped with unique adaptations that allow it to thrive in its subterranean habitat. Among these adaptations are the mole’s teeth, which serve not only as tools for tunneling but also as instruments for feeding. In this article, we will explore in detail the function of a mole’s teeth, from their anatomy to their role in the mole’s daily life. Join us on this journey into the subterranean world of the mole, and discover the remarkable complexities of this humble creature’s life.

The Anatomy of a Mole’s Teeth

The Anatomy Of A Mole'S Teeth
As we delve deeper into the world of moles, we cannot overlook their fascinating dental structure. Moles have teeth that are uniquely adapted to their lifestyle, allowing them to carve out intricate tunnels underground and source their food efficiently. Understanding the anatomy of a mole’s teeth is essential to comprehend their survival abilities in their underground habitat. This article aims to break down the different types of mole teeth and the purpose they serve in their everyday life. To learn more about the physical characteristics of moles, check out our article on physical characteristics of moles.


In a mole’s mouth, incisors are the front four teeth located on the top and bottom jaw. These teeth are long and sharp, and they have a pointed tip that is used for digging through soil when creating tunnels. They are also used for grasping and holding onto insects or other small prey.

| — | — |
| Number of incisors | 4 |
| Position in mouth | Front of the top and bottom jaw |
| Shape | Long and sharp |
| Function | Digging through soil, grasping and holding onto prey |

The incisors are essential for a mole’s survival, as they facilitate the digging of tunnels necessary for accessing food sources and avoiding predators. However, continuous digging can cause the teeth to wear down quickly. To avoid this, moles have evolved to have continuously growing teeth that are replaced throughout their lifetime.

According to research, there are over 40 species of moles with different types of incisors adapted to their particular environments. For example, Star-nosed moles have a specialized type of incisor that they use for detecting prey. They have a star-shaped structure around their snout that acts as a touch organ, which they use to identify their prey before using their incisors for digging and feeding.

It is also important to note that incisors are not only used for digging and feeding. They also play a role in the social behavior of moles, as they use them in aggression and defense against members of their own species or other intruders in their territory. The incisors’ sharpness, combined with the strength of their jaws and forelimbs, makes moles formidable underground predators.

Continue reading about different types of moles.


When it comes to the canines of a mole, they are relatively small and pointy teeth. Their main purpose is not for biting or tearing, like in many other mammals, but instead for holding prey while the mole uses its powerful jaws and front claws to crush it. The canines are located in the front of the mole’s mouth, one on each side of the incisors.

Interestingly, despite their small size, the canines are still an important part of a mole’s overall dental anatomy. They work alongside the other teeth to help the mole efficiently consume its food. And because moles have a very high metabolism and therefore require a lot of food to survive, every little bit counts.

As with other aspects of the mole’s anatomy, the size and shape of the canines have been shaped by evolution to be particularly well-suited to the mole’s unique lifestyle. They may not seem like much at first glance, but these teeth play an important role in enabling the mole to thrive in its underground habitat.

If you want to learn more about the other unique features of a mole’s anatomy and behavior, check out our articles on mole internal anatomy, mole’s unique fur significance, mole snout behavior, mole strong forelimbs and claws, moles hearing abilities, importance of mole’s tail, and how moles regulate body temperature underground.

Premolars and Molars

The premolars and molars are located towards the back of a mole’s mouth and are responsible for grinding up food. These teeth are larger and flatter than the incisors and canines, and have cusps or ridges that help them break down tough substances.

Moles have four premolars on each side of their upper and lower jaws, for a total of 16 premolars. These teeth have two roots and are used for crushing and grinding food.

Moles have six molars on each side of their upper and lower jaws, for a total of 24 molars. Like the premolars, these teeth have two roots and are used for grinding up food. However, they are even larger and flatter than the premolars and can transform the food into a fine paste before it reaches the stomach.

Together, the premolars and molars allow moles to effectively process the insects and earthworms they consume. Their teeth are perfectly adapted to their subterranean lifestyle, as the flat and broad teeth can easily crush and grind soil and prey.

The Function of a Mole’s Teeth in Tunneling

The Function Of A Mole'S Teeth In Tunneling
As subterranean creatures, moles have developed unique adaptations that help them navigate through the earth. One such adaptation is their specialized set of teeth, which serve multiple functions when it comes to tunneling. From their powerful incisors to their molars, each tooth plays a crucial role in the process of excavating and maintaining underground tunnels. Let’s explore the various functions of a mole’s teeth in tunneling with a closer look at their anatomy and unique properties.


The incisors of a mole are the teeth located at the front of their mouths. They are sharp, pointed and designed to cut through soil and underground roots, aiding in their tunneling and feeding. The incisors are the first teeth to come in contact with tough soil and rocky terrains, which means they need to be tough and resilient.

In terms of size and structure, the incisors of a mole are quite impressive. They are powerful and oversized, which helps them to dig through the soil with great ease. The incisors are also curved, which further assists them in their digging duties.

To provide even more strength and precision to the incisors, they are shaped like a chisel. This shape allows the teeth to create a wedge in the soil, splitting it apart and forming a tunnel for the mole to move through.

The incisors of a mole are a vital part of their anatomy. They allow the animal to tunnel and navigate difficult underground environments with ease. Without these teeth, a mole’s ability to navigate underground would be severely impacted.

To summarize the key points about mole incisors, the following table can be used:

Location Front of the mouth
Structure Sharp, pointed, curved like a chisel
Size Oversized and powerful
Function Cuts through soil and underground roots, aids in tunneling and feeding


Moles have four pointed canines, two on the upper and two on the lower jaw. These canines are used for gripping and holding the prey while they are being consumed. Unlike the incisors, these teeth are not used for digging or burrowing.

A unique feature of a mole’s canines is that they are longer than their incisors. These teeth are also sharper and stronger, allowing them to easily catch and hold onto their prey. The canines are located towards the front of the mouth, which helps the mole to accurately target their prey.

The canines of a mole are specialized for a carnivorous diet of insects, worms, and small animals. These teeth are designed to tear through flesh and tough exoskeletons, making it easier for the mole to consume its prey.

Here is a table summarizing the characteristics of a mole’s canines:

Characteristic Description
Number 4
Location Towards the front of the mouth
Size Longer than incisors
Shape Pointed
Strength Strong
Function Gripping and holding prey

The canines of a mole are an essential part of their anatomy, allowing them to catch and consume the small animals and insects that make up their carnivorous diet. Their design is specialized for this purpose, with longer, sharper teeth that are used for gripping and holding prey while it is consumed.

Premolars and Molars

The premolars and molars of a mole’s teeth are specialized for specific functions in their life underground. There are two pairs of premolars and three pairs of large molars in a mole’s dental formula, making their teeth highly adapted for their burrowing lifestyle.

Structure of Premolars and Molars:
The premolars and molars are flattened, and have a series of sharp cusps arranged in a specific pattern for effective grinding and chewing. They are also covered in enamel, which is the hardest substance in a mammal’s body, and helps to resist wear and tear from the abrasive soil encountered during burrowing.

Function of Premolars and Molars:
The premolars and molars of a mole’s teeth work together to pulverize soil and roots as the mole burrows underground. The large molars crush and grind the soil, while the smaller premolars help to trap and break apart small roots and other plant material that may be in the way. The flattened structure of both types of teeth helps to create a more efficient grinding surface for food.

Additionally, the premolars and molars also play a crucial role in a mole’s ability to build their complex tunnel system. By chewing through earth and roots, they create the intricate network of tunnels and chambers that moles use for shelter, nesting, and foraging. Without the adaptations of their teeth, moles would not be able to survive underground and thrive in their subterranean environment.

The premolars and molars of a mole’s teeth are highly specialized for the demands of a burrowing lifestyle. By working together to grind and chew through soil and roots, they not only help moles feed but also create the underground tunnels that are essential to their survival.

The Function of a Mole’s Teeth in Feeding

When it comes to feeding, moles have unique teeth adaptations that play a significant role in their ability to obtain their daily sustenance. From grinding up insects and small invertebrates to digesting their meals efficiently, these tiny creatures rely on a complex set of teeth tools that allow them to thrive in their underground habitats. So, let’s dive deeper into the fascinating world of mole dentistry and discover the intricate mechanisms behind their feeding habits.

Teeth Adaptations for Diet

Moles are insectivorous animals, which means that they mainly feed on insects. As a result, their teeth have adapted to suit their diet.

The molars and premolars are adapted for crushing and grinding insects’ hard exoskeletons. These teeth have pointed cusps, which can break down the exoskeletons and extract the nutrient-rich contents.

The canines are not as well-developed in moles as they are in other mammals. This is because moles do not need to tear into tough prey. The canines are smaller and more pointed, which is beneficial for catching and holding onto small, slippery insects.

The incisors are sharp and pointed, which allows them to effectively pierce through the exoskeletons of insects. Moles have sharp incisors in abundance to effectively capture and immobilize their prey.

The teeth of moles are adapted to their insectivorous diet. By having specialized teeth, they are able to extract the most nutrition possible from each insect that they eat.

Below is a table summarizing the teeth adaptation of moles for their diet:

Tooth Type Adaptation
Molars and Premolars Pointed cusps for crushing and grinding hard exoskeletons of insects
Canines Smaller and pointed for catching and holding onto small, slippery insects
Incisors Sharp and pointed for piercing through the exoskeletons of insects

The Process of Eating

When moles eat, their teeth play a crucial role in the process. Here are the key steps:

  • Biting: Moles use their incisors to bite off small pieces of food.
  • Cheek Pouches: The food is then stored in the mole’s cheek pouches, which can hold up to a third of the mole’s body weight!
  • Tunneling: The mole will then retreat to a safe location or tunnel to eat the food.
  • Grinding: Once in the tunnel, the mole will use its premolars and molars to grind the food into small pieces.
  • Swallowing: The small pieces of food are then swallowed, and the mole can continue eating until it is full.

It’s interesting to note how important the cheek pouches are for moles. They allow the mole to carry food safely back to its underground tunnel, where it can eat without being disturbed by predators. Additionally, the grinding action of the teeth helps to break down the food into smaller particles, making it easier to digest.

Teeth and Digestion

When it comes to digestion, a mole’s teeth play a vital role in preparing food for absorption in the stomach and intestines. Let’s take a look at the different types of teeth, their functions, and how they contribute to the digestive process.

Type of Tooth Function
Incisors Used to grasp and tear plant roots and other tough vegetation
Canines Not present in moles
Premolars and Molars Grind and crush food, breaking it down into smaller pieces for easier digestion

After a mole ingests food, it is broken down into smaller pieces by the grinding action of the premolars and molars. The food is then mixed with digestive enzymes and acids in the stomach, where the breakdown process continues. The small intestine then takes over, using enzymes to break down the food further and allowing for better nutrient absorption.

It is important to note that the structure of a mole’s teeth contributes to its unique digestive process. Their teeth are specially adapted to grind and crush tough vegetation and insects that are found underground. This allows them to obtain important nutrients from their diet, making them an essential part of many underground ecosystems.

The function of a mole’s teeth in digestion is critical to the breakdown and absorption of nutrients. The different types of teeth, including incisors, premolars, and molars, all contribute to the digestive process, allowing moles to survive and thrive in their underground habitats.


After delving into the intricacies of a mole’s dental anatomy and its functions in both tunneling and feeding, it becomes clear that these small creatures have a truly remarkable set of teeth. The positioning and structure of their incisors, canines, premolars, and molars are perfectly engineered to suit their digging needs and dietary requirements.

Overall, a mole’s teeth play a crucial role in its survival and daily life. They allow the animal to tunnel through soil and create extensive underground networks for protection, shelter, and food storage. They also enable them to crush and grind their primary food source, which consists of earthworms and other small invertebrates.

Furthermore, the specialized adaptations of a mole’s teeth showcase the evolutionary process and how living organisms develop and change over time in response to their environment. The way that their teeth are shaped and utilized for different purposes reveals the complex interplay between form and function in nature.

In conclusion, the teeth of moles are a testament to the ingenuity of evolution and the adaptability of living creatures. They serve as a prime example of how even the smallest and seemingly insignificant organisms can have a big impact on their ecosystem and the broader scientific community.

Frequently Asked Questions

How many teeth does a mole have?

A mole typically has 44 teeth.

What is the purpose of a mole’s teeth?

A mole’s teeth are used for both tunneling and feeding.

How do a mole’s incisors help in tunneling?

A mole’s sharp, strong incisors help in breaking through soil and roots while tunneling.

Do moles have canines like other animals?

Yes, moles have small, pointed canines which are used to grasp and hold onto prey while feeding.

What is the function of a mole’s premolars and molars?

A mole’s premolars and molars are used for crushing and grinding insects and other small creatures while feeding.

Why do moles tunnel underground?

Moles tunnel underground in search of food and for protection from predators.

How do mole’s teeth adapt to their diet?

Mole’s teeth are adapted to their insectivorous diet, with sharp and pointed incisors for piercing exoskeletons and strong molars for crushing hard-bodied prey.

What is the process of a mole eating?

A mole detects prey using its sense of smell and digs tunnels towards the prey. It then grabs the prey with its teeth, kills it, and eats it.

Do a mole’s teeth play a role in digestion?

Yes, a mole’s teeth help break down food into smaller pieces, making it easier for the digestive system to absorb nutrients.

Why are moles considered pests?

Moles are considered pests because their tunneling can damage lawns and gardens, and their feeding habits can deplete populations of beneficial insects.