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Do Frogs Eat Mice? YES But Species-Specific

Do Frogs Eat Mice

Frogs are fascinating creatures with a diverse range of diets. While most people associate frogs with eating insects and other small prey, there is a long-standing debate about whether or not they also eat mice. 

So, do frogs eat mice? Some species of frogs do eat mice, but it is not a common occurrence. Some larger species of frogs, like the African bullfrog and Goliath frog, are known to eat small mammals like mice.

In this article, we will explore the question of whether or not frogs eat mice. And take a closer look at the different types of frogs that may engage in this behavior.

Do Frogs Eat Mice? Different Types Of Frogs That Eat Mice

Do Frogs Eat Mice

Yes. Frogs eat mice. But it is species-specific. There isn’t an extensive list of frog species that regularly eat mice. 

Some larger and more opportunistic frogs have been known to consume small mammals like mice on occasion. Here’s a table of frog species that have been observed eating mice:

Frog SpeciesSizeHabitatDiet
American bullfrog (Lithobates catesbeianus)Up to 8 inches longPonds, lakes, rivers, and marshesMice, rats, snakes, other frogs, insects, and other invertebrates
African bullfrog (Pyxicephalus adspersus)Up to 12 inches longSavannas, grasslands, and woodlandsMice, rats, snakes, other frogs, insects, and other invertebrates
Goliath frog (Conraua goliath)Up to 3 feet longTropical rainforestsMice, rats, snakes, other frogs, insects, and other invertebrates
Cuban tree frog (Osteopilus septentrionalis)Up to 6 inches longTrees and shrubs near waterMice, insects, other frogs, and lizards
Pacman frog (Ceratophrys cornuta)Up to 6 inches longTropical rainforests and swampsMice, insects, and other frogs
Budgett’s Frog (Lepidobatrachus laevis)Up to 5 inches longgrasslands, woodlands, and wetlandsMice, Crickets, Mealworms, Roaches
Cane Toad (Rhinella marina)Up to 9 inches longsand dunes and coastal grasslandsMice, ants, beetles, cockroaches

1. American Bullfrog 

The American bullfrog is a well-known and widespread frog species. It primarily feeds on a diet of insects, small invertebrates, and other aquatic prey. They are opportunistic feeders, and in some rare cases, they may consume small vertebrates, including mice.

American Bullfrog

2. African Bullfrog

African Bullfrogs are one of the most well-known frog species that can consume mice. They are large and powerful amphibians found in sub-Saharan Africa and have been observed eating small vertebrates, including mice.

African Bullfrog

3. Goliath Frog

Goliath frogs are the largest frogs in the world and are found in Central Africa. Although they mainly feed on insects and crustaceans. It’s possible that they may consume small vertebrates on occasion.

Goliath Frog

4. Cuban Tree frogs

Cuban tree frogs are known to eat mice, along with a variety of other prey, including insects, other frogs, and lizards. Cuban tree frogs are native to Cuba. But they have been introduced to many other parts of the world, including Florida, Hawaii, and Australia.

Cuban Tree frogs

5. Pacman Frog

Also known as horned frogs, these species are named after their large, mouth-like appearance. They have been observed eating a variety of prey, including mice and other small vertebrates.

Pacman Frog

6. Budgett’s Frog

These frogs from South America have large mouths and a very hungry desire for food. While they primarily feed on aquatic invertebrates, they are opportunistic feeders and can eat small mammals like mice.

Budgett's Frog

7. Cane Toad

Cane toads are large amphibians native to Central and South America. Although their main diet consists of bugs and other small animals without backbones. There have been instances where they have been observed devouring small mammals like mice.

Cane Toad

How Do Frogs Eat Mice?

Frogs consume mice by swallowing them entirely. They are able to do this because they have a very large mouth and throat. Frogs also possess a strong stomach acid that aids in the digestion of their food. The process of a frog eating a mouse is relatively quick and easy. 

First, the frog will notice the mouse and patiently wait for it to approach within a certain distance. To catch a mouse, a frog will use its long tongue to flick the mouse into its mouth. When the mouse is close by, the frog will swiftly jump and capture it using its lengthy, sticky tongue.

How Do Frogs Eat Mice

Once the mouse is in the frog’s mouth, the frog will use its powerful jaws to close its mouth and start swallowing. The frog will usually swallow the mouse head-first. The frog’s eyes will bulge out as it swallows the mouse, and its body will expand.

After the mouse enters the frog’s belly, the stomach acid of the frog will start to break down. The frog’s stomach acid is very strong and can digest even the bones of the mouse. The frog will then absorb the nutrients from the mouse’s body. The entire digestive process takes about 24 hours.

What Are The Benefits Of Frogs Eating Mice?

What Are The Benefits Of Frogs Eating Mice

There are several benefits of frogs eating mice:

Getting Protein

Frogs obtain a nutritious supply of protein and other essential substances from mice. This aids in the growth and maintenance of frogs’ well-being.

Control of Pest Populations

Mice can be troublesome creatures and can also spread diseases. Frogs play an important role in keeping the environment healthy. In environments where mice and rodents are considered pests, frogs occasionally consuming mice can help regulate their populations.

Nutrient Cycling

When frogs consume mice or other small vertebrates, they help recycle ecosystem nutrients. The nutrients in the consumed prey are eventually returned to the ecosystem through the frog’s waste. It is helping other living beings and the general well-being of the environment.

Energy Transfer

Frogs that can eat mice may find it advantageous to consume prey with a greater amount of energy. This extra energy can help the frogs’ development and reproduction success, possibly resulting in stronger frog communities.


The presence of frogs that eat a variety of prey, including mice, contributes to the overall biodiversity of ecosystems. Biodiversity can enhance ecosystem resilience and stability.

What Are The Risks Of Frogs Eating Mice?

What Are The Risks Of Frogs Eating Mice

While frogs occasionally eating mice may have some benefits, there are also potential risks and drawbacks to this behavior:

  • Mice can carry diseases that can make frogs sick. Some of these diseases, such as salmonellosis and leptospirosis, can be fatal to frogs.
  • Some frogs cannot safely consume mice that are too big in size. If a frog tries to eat a mouse that is too large, it can choke or even die.
  • Frogs can also get injured while attempting to capture mice. Mice can bite and scratch, and they can also carry parasites that can harm frogs.
  • If frogs eat too many mice, it can disrupt the balance of the ecosystem. This is because mice are also food for other animals, such as hawks and snakes.

Overall, the risks of frogs eating mice are relatively low. However, it is important to be aware of the risks and to take steps to protect your frogs.


Here, we’ve compiled some of the most common questions we receive about our topic.

Q: Can A Frog Eat A Rat?

If a frog is big enough, it can devour a rat. Some of the largest frog species in the world can even consume rats, such as the American bullfrog, the African bullfrog, and the Goliath frog. 

It’s crucial to keep in mind that the majority of frogs are not inherent hunters of rats. Their diet is quite different from that of animals like snakes or birds of prey. These animals are better prepared to track and eat small mammals.

Q: Can frogs eat dead mice?

Frogs are not typically known for eating dead animals, including dead mice. Their diet mainly consists of live prey, such as insects, small invertebrates, and occasionally small vertebrates. 

Certain types of frogs may unintentionally consume inanimate substances. However, the main method of feeding these animals is catching and devouring live animals.

Q: What should I do if I see a frog eating a mouse?

If you see a frog eating a mouse, there is no need to do anything. Frogs are wild animals who know how to care for themselves. If you are concerned about the frog’s health. You can try to identify the species of frog and research the risks associated with eating mice.

Final Thoughts

In conclusion, most frogs primarily consume insects and other small prey. Some larger species of frogs have been known to eat mice and other small mammals. However, this behavior is not common across all frog species. Smaller frogs are not equipped to hunt or consume mice due to their size.

Overall, frogs are generalist carnivores that will eat almost any prey they can catch and fit into their mouths. Their diverse diets are just one of the many fascinating aspects of these unique and interesting creatures.

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