How Small of a Hole Can a Possum Squeeze Through?
A possum, with its remarkable flexibility, can squeeze through surprisingly small openings; they can typically fit through holes as small as 4 inches in diameter, sometimes even smaller depending on their size and motivation. This adaptability is a key factor in their ability to thrive in diverse environments.
Understanding Possum Anatomy and Flexibility
The key to understanding how small of a hole can a possum get through? lies in their unique anatomy. Unlike some animals with rigid bone structures, possums possess a high degree of flexibility, particularly in their rib cage and spine. This allows them to contort their bodies into shapes that seem almost impossible.
- Flexible Rib Cage: Possums’ ribs are not as tightly connected as those of some mammals. This gives their chest cavity significant leeway to compress.
- Adaptable Spine: Their spine is similarly flexible, allowing them to bend and twist with ease.
- Compressible Skull: While not as flexible as their torso, their skull has some give, contributing to their overall ability to fit into tight spaces.
This flexibility is crucial for accessing food sources, finding shelter from predators or harsh weather, and navigating urban environments.
Factors Influencing Squeeze-Through Ability
Several factors influence how small of a hole can a possum get through?.
- Possum Size: Obviously, a larger, adult possum will require a slightly larger opening than a juvenile. Young possums can exploit even smaller gaps.
- Motivation: Hunger or fear can significantly increase a possum’s willingness to attempt squeezing through a tight space. A possum desperately seeking food or escaping danger is far more likely to push its limits.
- Obstacles Within the Hole: The presence of internal wires, debris, or sharp edges within the opening can hinder a possum’s progress, even if the opening itself is seemingly large enough.
- Smoothness of Surfaces: Smooth surfaces make it easier for a possum to maneuver and squeeze through. Rough surfaces can snag their fur and slow them down.
Identifying Potential Entry Points
Knowing the size of openings possums can exploit is crucial for preventing them from entering your home or property. Common entry points include:
- Gaps under doors: Especially garage doors.
- Cracks in foundations: Even small cracks can be widened by possums over time.
- Unscreened vents: Dryer vents, attic vents, and crawl space vents are prime targets.
- Holes in siding or roofing: Damaged areas provide easy access.
Prevention Strategies
To prevent possums from entering your property, focus on sealing potential entry points:
- Seal cracks and holes: Use caulk, expanding foam, or metal flashing to seal any openings larger than 1/4 inch.
- Install screens: Cover vents with sturdy, galvanized steel mesh screens.
- Repair damaged siding or roofing: Address any damage promptly.
- Use door sweeps: Install door sweeps on exterior doors to eliminate gaps underneath.
- Secure garbage cans: Keep garbage cans tightly closed and consider using bungee cords to secure lids.
Possum Proofing Materials Comparison
| Material | Durability | Cost | Ease of Use | Best For |
|---|---|---|---|---|
| —————– | ———— | ——– | ————- | ——————————————- |
| Caulk | Moderate | Low | Easy | Sealing small cracks and gaps |
| Expanding Foam | Moderate | Medium | Easy | Filling larger holes and gaps |
| Metal Flashing | High | Medium | Moderate | Reinforcing areas prone to chewing |
| Steel Mesh | High | Medium | Moderate | Covering vents and openings |
Considerations for Human Trapping and Removal
If possums have already gained access to your property, trapping and removal may be necessary. However, humane trapping practices are essential.
- Use live traps: Choose traps that are appropriately sized for possums.
- Bait the trap: Use appealing baits like fruit or pet food.
- Check the trap regularly: Check the trap daily to prevent unnecessary suffering.
- Relocate humanely: Contact your local animal control or wildlife rehabilitation center for guidance on proper relocation procedures. In many areas, it is illegal to relocate them a certain distance from the point of capture.
Legal Considerations
Be aware of local laws and regulations regarding possum trapping and relocation. Some areas have restrictions or require permits. Consult with your local wildlife agency for clarification.
Professional Help
If you are unable to manage the possum problem yourself, consider hiring a professional wildlife removal service. They have the expertise and equipment to safely and humanely remove possums from your property.
Frequently Asked Questions (FAQs)
How do I tell if a possum is living under my house?
Signs of a possum infestation include droppings, strong odors (similar to skunk), scratching noises at night, and sightings of possums entering or exiting the area. Daytime sightings are a strong indicator as they are primarily nocturnal animals.
Are possums dangerous?
Possums are generally not aggressive towards humans. They are more likely to play dead or run away than to attack. However, they can carry diseases and parasites, so avoid direct contact and clean up any droppings carefully.
What diseases can possums carry?
Possums can carry leptospirosis, tuberculosis, coccidiosis, and other diseases. They can also carry fleas, ticks, mites, and lice. While rare, they can transmit rabies.
What should I do if I find a baby possum?
If the baby possum appears healthy and is larger than seven inches long (excluding the tail), it is likely independent and should be left alone. If it is smaller or injured, contact a local wildlife rehabilitation center immediately.
How do I deter possums from my yard without harming them?
Remove food sources (pet food, fallen fruit), secure garbage cans, and clear away brush piles where possums might nest. Motion-activated lights and sprinklers can also deter them.
Do possums dig?
Possums are not primarily diggers, but they may enlarge existing holes or burrows to create a den. They are more likely to use existing spaces than to create their own from scratch.
What do possums eat?
Possums are omnivores and have a varied diet. They eat insects, rodents, fruits, vegetables, carrion, and even garbage.
Are possums protected?
Possums are protected by some state and local laws. Check with your local wildlife agency for specific regulations in your area.
What is the difference between an opossum and a possum?
“Possum” is often used as a shortened, informal version of “opossum,” which is the correct scientific name for the North American marsupial. True possums are found in Australia and New Guinea.
Why do possums “play dead”?
Playing dead is an involuntary defense mechanism triggered by extreme stress or fear. The possum becomes limp, emits a foul odor, and may even drool to appear as unappetizing as possible to predators.
How can I keep possums away from my bird feeders?
Use squirrel-proof bird feeders, hang feeders high up and away from trees or fences, and clean up spilled birdseed regularly. A baffle on the pole under the feeder is useful.
How small of a hole can a possum get through? When are they most likely to enter my home?
As mentioned earlier, they can typically fit through holes as small as 4 inches in diameter, sometimes even smaller. Possums are most likely to enter homes during the fall and winter months when food sources are scarce and they are seeking shelter from the cold.