Mallard Duck opening his mouth to quack

Ducks are a rather peculiar animal and are members of the Anatidae family with short necks. They are an exciting breed as they can see things up close and far away in great focus due to the structure of their eyes.

Also, because their eyes are on each side of their heads, they can view about 340 degrees in all directions. They are also capable of autonomous eye movement and can keep one eye up when sleeping to keep a lookout for predators.

Ducks are different from other water birds like loons, grebes, and coots, yet smaller than geese and swans. They tend to quack and can get found worldwide in fresh and saltwater. However, due to the peculiarity of their eyes, quite several people might wonder if they are special enough to have teeth, unlike several other aquatic birds.  

So, in this article, we’ll discuss all you need to know about ducks, their association with teeth, and their alternate organ for chewing.

Do Ducks Have Teeth?

According to fossil evidence from the Jurassic period, ducks did have well-developed teeth. However, toothed birds became extinct by the Cretaceous age. But, as they evolved to changing nutritional and environmental conditions, bird species shrank in size and weight due to adaptation to shifting habitats.

The skeletons of birds shrank in size and weight, becoming lighter and more delicate—however, this alteration connected as the teeth disappeared when newer, lighter skulls emerged.

Ducks, like geese, have an adaptation to swallow food, so they are without the ability to chew. However, their beaks have a comb-like system with jagged notches, which many people mistake for what appear to be duck teeth. Furthermore, ducks and other birds do not have mammal-like teeth because they cannot generate enamel.

In straightforward terms, ducks have no teeth, just like other aquatic birds. However, on the outside of their beaks, they have intricate, semi-flexible structures called lamellae. There are several purposes for these lamellae. First, as the duck is feeding, they serve as comb-like filters.

Three ducks on a farm

They also have an organ called bills, with the edges having teeth-like features, which aid in filtering food as it gets consumed instead of chewing or grinding. When the duck catches aquatic vegetation, they serve as a kind of baleen whale’s sifting teeth to separate water from plant matter. Furthermore, the lamellae prevent water and mud from entering the duck’s mouth and the plants it drags into its mouth.

Ducks consume whole food; the body breaks them into smaller pieces in the gizzard, a digestive organ. To continue digestion, hard food gets broken down into tiny pieces using the grit and gravel the duck inhaled and stored in its gizzard.

Furthermore, ducks also groom themselves using their lamellae. If you’ve ever observed ducks for even a brief period, you’ve noticed them grooming their feathers.

They do this by brushing their feathers with the tiny lamellae on their bills as they move about. The lamellae are good cleaning agents that won’t harm feathers, and they work well together as a comb since they are compact and versatile.

What Way Do Ducks Chew?

Ducks have lamellae and have no way to consume food without bills. The same human nails and hair component, keratin, makes up duck bills. Usually, there is an encasement of the bill in the skin, which results in the skin producing soft keratin. Over time, this keratin hardens and keeps the bill shiny and hard.

Like other living bird species, ducks swallow their food whole rather than chewing it. They don’t need teeth because they don’t chew their food. But it also raises the question of how exactly ducks digest their meal.

The digestion of food for ducks begins with their consumption of rocks. After which, the ducks’ food first passes via their gizzard, where the rocks accumulate in the body.

The meal and the boulders spin around in the gizzard, just like laundry inside a washing machine. Then, the meal gets broken up by the rocks as it moves along until it gets ready for digestion. So, for digestion, ducks have gizzard rocks instead of teeth.

Does the tongue of ducks have teeth?

Some animals have a tongue with serrations that resemble teeth but are not actual. This fact results in questions about if ducks also fall into this category. However, ducks don’t have teeth on their tongue. 

Although they have tongues, their tongues are toothless. However, they do have a row of sharp ridges, usually along the beaks’ edge, which you could mistake for a row of small, pointed teeth.

Furthermore, there is a microscopic hair-like structure in ducks’ tongues, known as the papillae, which aids in grasping food and pushing it into the proper position for swallowing.

Group of ducks

Does a Duck Bite?

Ducks can bite, like any other animal, despite lacking teeth. Their bite can cause a great deal of harm. However, ducks are not aggressive and would prefer to flee from a person than bite them.

Duck bites can range in severity from a light pinch to a firm grasp, and any one of them may cause severe bleeding or damage. Furthermore, they can bite because of a variety of different reasons.

Hens, the female ducks, bite to defend themselves or their eggs from predators. If the male of the species feels individual or other animals threaten their mate or intrude on their territory, they may attack.

Ducks may also bite their breeder or any other person they find to be kind, which is usually a sign to express their affection. Furthermore, a duck will bite if it has no other option, but it may only be a pinch due to its small size and lack of teeth.

A duck bites by nipping at its victim’s flesh with its bill and lamella or poking it with its bill to crack or break open a nut. Being bitten by a duck shouldn’t hurt, as ducks don’t have teeth, right? However, contrary to popular belief, that statement is untrue.

The pain of a duck bite can be severe even without teeth. If you recognize when a duck gets scared and take the necessary steps to reassure it, you shouldn’t have any issues.

What Food Types Are Best for Ducks?

Since ducks don’t have teeth, many duck lovers are unsure of how to feed the animals. You can offer the ducks food, but make sure the food gets sliced into manageable, bite-sized pieces. Peas, bird seeds, and chopped vegetables are best to feed a duck.

Giving them small portions of food reduces the risk of choking and injury. Furthermore, avoid giving your ducks significant portions of food and carbohydrates like cookies, bread, or popcorn; these foods are already junk food and have no nutritional value.

It’s wise to prepare beforehand by learning what foods are healthy and nourishing for ducks if you plan to feed them. Make sure to crush the nuts before giving them to the ducks. Due to their lack of teeth, ducks get choked by more oversized food items, incredibly huge nuts.


In our opinion, ducks are some of the world’s most beautiful and fascinating creatures. In fact, despite lacking teeth, only a few other bird species can eat as much as ducks.

Now that you know this, there is a better understanding of what to feed ducks if you plan to rear some. Although, their lack of teeth doesn’t stop these vibrant birds from chowing down and enjoying anything they desire.

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