Giant Rats Won't Die and Keep Invading Florida

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Between 1999 and 2001, about eight giant Gambian pouched rats were let loose by a local exotic breeder. More than a decade later, despite multiple attempts to eradicate what Zoo Miami Communications Director Ron Magill calls "the largest true rat in the world," the mutant critters just won't go away. reported this week that the Florida Wildlife Commission (FWC) had put up fliers on homes in the Grassy Key area alerting residents to be aware of the rodents, which usually weigh three to four pounds and run up to 30 (thirty!) inches in length.

After eradication efforts several years ago, the FWC believed the huge rats to be gone from South Florida as of 2010, spokeswoman Carli Segelson told New Times. But then cameras captured them reappearing in 2011.

See also: Rock Python Kills Husky in Miami-Dade: Officials Fear New Breed of "Super Snake"

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"At that time, FWC biologists began taking periodic trips to the site for two- to three-day trapping events. Since 2011, the FWC has removed a handful of Gambian pouched rats, though more continue to show up on pictures from the baited cameras. The Gambian pouched rat population is currently very small, but trapping must be ongoing to prevent the population from growing. The goal of continued efforts is to eradicate this species."


According to Magill, though, the whole they must die sound stems from the giant rats being a danger to our plants, not to us.

"It's not a dangerous animal necessarily to humans. The problem with these rats is first of all, they love to dig burrows," he said. "They go into tunnels quite a bit. In Grassy Key, there's a lot of inaccessible areas, so you have an animal that has a way to hide because it goes into these burrows all the time, you have an animal that reproduces at a ridiculously high rate, so every time you think you're catching up, they're also catching up. They thought they had these things eradicated but, man, it only takes one that's pregnant in the wild. I don't know if they'll be able to totally eradicate them, but the most important thing is preventing them from getting on the mainland."

See also: Florida is Being Invaded By Exotic Tegu Lizards

The rats also have a link to monkeypox, Magill said. In 2003, the Centers for Disease Control and Prevention reported a small number of cases throughout the United States of monkeybox that could have resulted from prairie dogs interacting with humans after they'd come in contact with the Gambian rats.

Still, despite the jarring rodent's tendency to wreck ass on Mother Nature and maaaaaaybe give you monkeypox, in 2003, a pair of Belgians started an organization called APOPO that revolved around teaching and training giant rats, like the African Gambian. To detect bleeping land mines and tuberculosis. No typo. They're called HeroRATS and APOPO trains them in their native Africa over nine months, hooking them up to ropes in simulated mine fields where they cover 200 to 400 square meters a day, sniffing for bombs, scratching when found. Seriously, check it out:

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Scary stuff these giant rats.  I lived in Japan for a short time and that is where I saw the largest rat I have ever seen.  not nearly as big as these so I am glad I have not seen one like this.  Fingers crossed I won't here in the future.


What happened to the exotic breeder that started this??

Zach Scott
Zach Scott

Holy crap! I used to see these things in the laundry rooms of my old apartment complex! I miss that place....

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