Possum vs. Opossum: One’s Australian, the Other’s Digging Through Your Trash in Wisconsin

You’ve heard the name, maybe seen one shuffle across the backyard at night, but is it a possum or an opossum? 

While people use the words interchangeably, they’re not the same animal. And if you’re asking, “Are opossums aggressive?” it’s likely because one has wandered a little too close for comfort. 

Here’s what you need to know about the differences between possums and opossums, how to identify one, and whether the opossum in your yard is something to worry about. 

Possum vs. Opossum: What’s the Real Difference? 

The difference comes down to geography and species. 

• Possums are native to Australia. They’re tree-dwelling marsupials with bushy tails, and you won’t find them in the U.S. 

• Opossums, specifically the Virginia opossum, are found across North America, including Wisconsin. These are the ones likely digging through your trash or living under your deck. 

Opossums have: 

• Long, hairless tails 

• Grayish-white fur 

• Pointed faces and glowing eyes at night 

• A habit of scavenging near human homes 

So if you’re in Eau Claire, Chippewa Falls, or Hobart, you’re not seeing a possum, you’re seeing an opossum. 

Are Opossums Aggressive? Their Scary Look Can Be Misleading 

You might hear a hiss, see sharp teeth, or catch glowing eyes, but most opossums aren’t looking for a fight. 

Here’s the truth: 

• No, opossums are not aggressive. 

• They hiss and show their teeth only when scared. 

• They’re more likely to “play dead” than to fight. 

• Rabies is rare in opossums due to their low body temperature. 

Even if cornered, they usually try to flee. Their dramatic behavior is defensive, not hostile. That said, like any wild animal, they can bite or scratch if handled. Please maintain a safe distance and contact a professional for removal. 

How to Keep Opossums Away From Your Trash and Out of Your Yard 

Step 1: Secure All Outdoor Garbage 

Use locking lids or bungee cords. Don’t leave trash bags outside overnight. 

Step 2: Eliminate Shelter 

Clear brush piles and seal off access to crawl spaces, sheds, or garages. 

Step 3: Remove Attractants 

Avoid leaving pet food or birdseed out. Clean up fallen fruit and food scraps. 

Step 4: Install Motion Lights or Fencing 

Opossums dislike bright lights. Motion-activated lighting or barriers can deter them. 

Step 5: Call for Safe Removal 

If an opossum has taken shelter near your home, 1st Choice Pest Solutions offers humane trapping and removal across Wisconsin. 

Common Questions About Opossums in Wisconsin 

Are opossums aggressive toward people or pets? 

No. They’re timid and avoid confrontation. Hissing and bared teeth are for defense, not attack. 

What’s the difference between a possum and an opossum? 

Possums live in Australia. Opossums live in North America; they’re the ones you’re seeing in Wisconsin. 

Can opossums spread disease? 

They can carry parasites and bacteria, like any wild animal. But rabies is extremely rare. Avoid handling them directly. 

What do opossums eat? 

They’re scavengers. Their diet includes trash, insects, rodents, pet food, and fruit. 

Should I be worried if I see one in my yard? 

Not always. If it’s just passing through, it may leave. If it’s nesting or returning, it’s best to take action. 

Harmless but Not Helpless: Why You Should Still Remove Opossums Safely 

Opossums aren’t dangerous, but they don’t belong around your home. Their scavenging, droppings, and nesting can lead to property messes and health concerns over time. 

Call 1st Choice Pest Solutions for humane opossum removal and exclusion in Eau Claire, Chippewa Falls, and Hobart. We’ll clear out the wildlife and help you secure your property before it becomes a recurring problem.