05/23/2026
Opossums are immune to most North American snake venom.
And scientists want to know why.
→ A protein in opossum blood called LTNF (Lethal Toxin Neutralizing Factor) neutralizes venom
→ They regularly eat copperheads, rattlesnakes, and cottonmouths
→ They are one of the few predators of venomous snakes
→ Researchers are studying LTNF to develop a universal antivenom for humans
→ Published research (2015, San Jose State University) showed opossum-derived peptides protected mice from cobra, rattlesnake, and scorpion venom
The opossum immunity portfolio:
→ Snake venom: immune
→ Rabies: nearly immune (body temperature too low)
→ Bee and wasp stings: highly resistant
→ Botulinum toxin: resistant
→ Ricin: partially resistant
→ They're basically walking antidote machines
What else they eat:
→ Cockroaches (dozens per night)
→ Ticks (though the 5,000/season claim is debunked — they still eat some)
→ Carrion (sanitation service)
→ Slugs, snails, beetles
→ Mice and rats
→ Overripe fruit (seed dispersal)
The opossum is North America's only marsupial.
It's immune to snake venom.
It's nearly immune to rabies.
And we treat it like garbage.
The animal you killed with a shovel might have been developing the cure for snakebite.
Leave it alone. Science needs it. 🧪
゚viralシ