Possums vs. pythons

It sounds like a stretch, but there’s actually some solid biology behind the idea that Florida’s native opossum—specifically the Virginia opossum—could play a role in the fight against invasive snakes like the Burmese python.

🐍 The Python Problem in Florida

Since the 1990s, Burmese pythons have exploded in number across South Florida, especially in the Everglades National Park. With no natural predators large enough to control them, these snakes have devastated native wildlife—raccoons, rabbits, foxes, even bobcats have seen massive population drops.

🐀 Enter the Opossum

The Virginia opossum is often overlooked, but it has a few surprising traits that make it uniquely tough:

• Venom resistance: Opossums have a natural resistance to snake venom, including from pit vipers. Scientists have even studied this trait for potential medical uses.

• Opportunistic diet: They eat almost anything—eggs, small animals, carrion—which means they can prey on snake eggs or even small juvenile snakes.

• High tolerance for rough environments: They thrive in many habitats, including areas where pythons are present.

⚖️ Reality Check: Are They “Python Killers”?

Here’s where things get less dramatic:

• An opossum is not taking down an adult Burmese python—those snakes can reach 15+ feet and weigh over 100 pounds.

• However, opossums may help at the margins by:

  • Eating python eggs

  • Preying on hatchlings

  • Competing for similar food sources

So the “weapon” label is a bit of an exaggeration. They’re more like natural resistance fighters than frontline soldiers.

🧪 Why Scientists Care

Researchers are especially interested in the opossum’s venom resistance. A peptide found in their blood can neutralize toxins, which could lead to improved antivenoms for humans. That’s arguably more impactful than their role in python control.

🌴 The Bigger Picture

Florida’s python crisis isn’t going to be solved by one species. Efforts still rely on:

• Human removal programs

• Tracking and tagging snakes

• Public reporting

• Habitat management

But the opossum is a reminder that native species sometimes have unexpected advantages—even if they’re not the silver bullet.