“Hi, I’m a possum, and I’m not here to cause trouble… Every night, I can eat up to 2,000 ticks… I also help keep snake populations in check… My body is built tough… scientists have used my blood to create treatments for snake bites… So if you see me, please don’t hurt me, let me raise my babies! We’re out here working quietly to make the world safer for all of us.”
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In fact, far from being a dangerous pest, the common possum is a quiet ally in our neighborhoods, helping control pests and even protecting us in surprising ways. This article will explore why opossums (often called possums) deserve our appreciation – from devouring disease-carrying ticks to surviving snake bites – and how these shy, nocturnal mammals make the world a safer place for humans.
Tick Killers and Disease Defense

One of the possum’s most famous talents is its ability to kill ticks, which can help curb the spread of tick-borne diseases like Lyme disease. A single opossum can eliminate an estimated 5,000 ticks in a season just by grooming itself, killing over 95% of the ticks that attempt to feed on it. In essence, possums act like natural tick vacuum cleaners in the ecosystem. Every tick a possum kills is one less that might have bitten a person or a pet.
Possums don’t deliberately eat ticks as food, but they destroy huge numbers during grooming. Regardless of the method, the end result is the same: hundreds or thousands of ticks never get the chance to spread diseases. In areas where Lyme disease is a concern, having a possum nearby can reduce your risk by reducing the local tick population.
Pest Control Experts
Ticks aren’t the only pests that opossums help eliminate. Possums have a wide-ranging diet and will gladly feast on many creatures we consider pests:
- Insects and slugs: Cockroaches, beetles, crickets, snails and slugs.
- Rodents: Small rats and mice.
- Carrion: Dead animals that could otherwise spread disease.
- Fruit and garbage: Overripe fruit, fallen berries, and leftovers.
By cleaning up these food sources and pests, possums act as nature’s free pest control service operating on the night shift.

Snake Slayers with Super Immunity
Possums do something most of us would never dream of – they hunt and eat snakes, including venomous species like rattlesnakes and copperheads. They have a natural resistance to many snake venoms. Their bodies contain special proteins that neutralize toxins, making them one of the toughest creatures in the animal kingdom.
Researchers estimate that an opossum could survive venom equal to dozens of rattlesnake bites. This adaptation lets possums shrug off snake encounters and even eat venomous snakes without harm. By preying on smaller venomous snakes, they help keep snake populations in check around human habitats.
A Potential Lifesaver for Humans
The possum’s snake immunity isn’t just trivia – it might actually save human lives. Scientists discovered a unique compound in possum blood, called Lethal Toxin Neutralizing Factor (LTNF), that neutralizes snake venom. Experiments show that a peptide from this compound protects test animals from the venom of deadly snakes.
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This discovery has the potential to revolutionize antivenom production. Current antivenoms are expensive, species-specific, and hard to access in many parts of the world. A possum-derived peptide could lead to a universal, low-cost treatment that saves thousands of lives each year.
Misunderstood Marsupial: Myths and Facts
Opossums often get a bad reputation due to appearance and myths. Here are a few facts:
- They rarely carry rabies. Their low body temperature makes it difficult for the virus to survive.
- They play dead when threatened. This is not aggression but an involuntary response to fear.
- They are devoted mothers. Females carry their tiny babies in a pouch, and later on their backs, as they forage at night.
Opossums are the only marsupial native to North America. A mother can give birth to a dozen babies, each no bigger than a honeybee at birth, and raise them with remarkable care.
Conclusion

The unassuming possum may not win any beauty contests, but it certainly earns its place in our ecosystems. From devouring ticks and garden pests to dispatching venomous snakes and even contributing to life-saving medical research, possums are unsung heroes of the night.
The next time you see one by your trash bin or in your backyard, remember the good it brings. Give it space, don’t harm it, and let it carry on with its quiet, essential work. By coexisting with possums, we allow them to keep making our world a cleaner, healthier, and safer place for us all.