Bunnies & Guinea Pigs: Why Their Teeth Never Stop Growing: and the Best Toys to Keep Them Busy
Bunnies & Guinea Pigs: Why Their Teeth Never Stop Growing: and the Best Toys to Keep Them Busy
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If you’ve ever spent a quiet evening on the couch with your favorite long-eared friend or a squeaky little "wheek-ing" guinea pig, you’ve probably heard it: that constant, rhythmic crunch-crunch-crunch. Whether they are nibbling on a piece of hay or investigating the corner of a cardboard box, these small animals are professional chewers.
But did you know that their constant nibbling isn't just a hobby? It’s a biological necessity! At Sierra Fish & Pets, we get questions all the time about why rabbits and guinea pigs seem obsessed with chewing everything in sight. The answer lies in their fascinating dental anatomy.
In this guide, we’re diving deep into the world of small animal dental health, why their teeth are basically "superpowers" that never stop growing, and how you can provide the latest greatest toys and nutrition to keep them healthy and happy. Our mission has always been Pleasing Customers and Pampering Pets, and that starts with understanding exactly what your little companions need to thrive!
The Never-Ending Tooth: A Biological Marvel
Rabbits and guinea pigs have what scientists call open-rooted teeth(or elodont teeth). Unlike human teeth, which grow to a certain size and then stop, the teeth of these small mammals grow continuously throughout their entire lives.
Think of it like your fingernails. If you didn’t trim your nails, they’d eventually become long, curved, and impossible to use. The same thing happens to a bunny’s incisors and molars!
The Fast and the Furry: Growth Statistics
To give you an idea of just how fast this is happening:
- Guinea Pigs: Their teeth grow approximately 2.9 inches (7.5 cm) per year.
- Rabbits: Their incisors grow even faster, at a rate of about 2.0 to 2.4 millimeters per week. That’s nearly 5 inches of tooth every single year!
In the wild, these animals spend hours every day foraging on tough, fibrous grasses and gritty vegetation. This natural diet acts like a piece of sandpaper, constantly wearing the teeth down at the same rate they grow. In our homes, it’s up to us to provide that "sandpaper" effect through the right diet and plenty of things to gnaw on.

What Happens if They Don’t Chew?
If a rabbit or guinea pig doesn't have enough roughage to wear down those pearly whites, things can get uncomfortable fast. This leads to a condition called malocclusion. This is a fancy word for when the teeth don't align properly.
When teeth become overgrown, they can develop sharp points called "spurs." These spurs can cut into their cheeks or tongue, making it incredibly painful to eat. In severe cases, the teeth can even grow back into the jaw or prevent the mouth from closing entirely.
Because our mission is all about pampering pets, we want to make sure your little guy never has to deal with that! Prevention is the best medicine, and it starts in the hay loft.
Hay: The Unsung Hero of Dental Health
If you want a pet with perfect teeth, you need high-quality hay: and lots of it! Hay should make up about 80-90% of your rabbit or guinea pig’s diet. It provides the long-strand fiber necessary for healthy digestion and the abrasive texture needed for dental wear.
At Sierra Fish & Pets, we carry a wide range of small animal supplies to ensure you have the best options. When you’re browsing our aisles or our website , look for varieties like:
- Timothy Hay: The gold standard for adult small animals. It’s high in fiber and perfect for grinding down those back molars.
- Orchard Grass: A great alternative for people (or pets!) with allergies to Timothy hay. It’s a bit softer but still offers great dental benefits.
- Oat Hay: Crunchy and full of husks that provide an extra-tough chewing experience.

Premium Nutrition: The Brands We Trust
While hay is the foundation, a balanced diet includes high-quality pellets. You want pellets that are uniform so your pet can’t "pick out" the sweet bits and leave the healthy stuff behind.
We take pride in stocking the names that experts and hobbyists trust. Whether you are looking for specialized nutrition or everyday essentials, we’ve got you covered with brands like:
- Kaytee: A household name for a reason! Their Forti-Diet and Food from the Wild lines are packed with the nutrients your small animals need.
- Zupreem: Known for their high-quality formulations that focus on both health and palatability.
- Volkman: If you’re looking for clean, high-quality seed mixes and grains to supplement a healthy diet, Volkman is a fantastic choice.
- Harrison's: While famous for their premium bird diets, we carry a wide range of specialized brands to ensure every animal in your home gets top-tier care.
A small serving of these pellets daily ensures your pet gets their vitamins (especially Vitamin C for guinea pigs!) while the crunchy texture helps slightly with that front-tooth wear.
Toy Time: Keeping Them Busy (and Their Teeth Short)
Let’s talk about the fun stuff! To keep your pet pawsitively entertained, you need a rotation of chew toys. Boredom is the enemy of a happy pet, and a bored bunny is a bunny that might start nibbling on your baseboards or power cords.
Here are some of the best ways to keep them busy:
1. Natural Wood Chews
Unfiltered, pet-safe wood is one of the best things for a rabbit or guinea pig to gnaw on. Look for applewood sticks, willow branches, or pearwood. These are tough enough to provide a challenge but safe for their sensitive tummies.
2. Woven Grass Toys
From seagrass mats to willow balls, woven toys are a blast. Your pet can toss them, shred them, and eventually eat them. It encourages natural foraging behavior and keeps them occupied for hours.
3. Edible Hideouts
Why just sit in a house when you can eat it? We stock hay-covered tunnels and cardboard hideouts that are specifically designed for safe chewing.
4. Foraging Puzzles
Try stuffing some high-quality hay and a few dried herbs into a whisk or a specialized foraging toy. Your pet will have to work to get the treats out, using their teeth and brain at the same time!

How to Spot Dental Trouble
Even with the best care, sometimes dental issues can pop up. As a pet parent, you are the first line of defense. Keep an eye out for these "red flags":
- Drooling: If the chin is always wet (often called "slobbers"), it’s a sign of mouth pain.
- Change in Eating Habits: If they suddenly stop eating their hay but still want soft treats, their back teeth might be bothering them.
- Weight Loss: Always a sign that something is wrong.
- Eye Discharge: Because the roots of the upper teeth are so close to the tear ducts, overgrown roots can actually cause runny eyes.
If you notice any of these, it's time for a trip to a specialized vet!
Sierra Fish & Pets: Your Local Small Animal Experts
We know that your bunnies and guinea pigs are more than just "pocket pets": they are members of the family. That’s why we are dedicated to providing the very best advice and the highest-quality supplies in the Kent area and beyond.
From the moment you walk through our doors or click on our sitemap , you’ll find a team that is passionate about animal welfare. We don't just sell products; we share the joy of pet ownership. Whether you need a new bag of Zupreem pellets or the latest greatest willow toy to keep your rabbit from chewing the sofa, we are here to help.

Final Thoughts: Chew on This!
Maintaining your pet's dental health doesn't have to be a chore. By providing a mountain of hay, a balanced diet of Kaytee or Volkman pellets, and a rotating selection of fun chew toys, you’re setting your furry friend up for a long, happy life.
Remember, a chewing pet is a healthy pet! So next time you hear that crunch-crunch-crunch in the middle of the night, just smile knowing those teeth are getting exactly the workout they need.
Stop by Sierra Fish & Pets today to stock up on all your small animal essentials. Let’s keep those bunnies hopping and those guinea pigs "popcorning" with joy! Our mission of Pleasing Customers and Pampering Pets is what drives us every day( come see the difference for yourself!)









