By Dr. Josh Meddaugh
Georgia has a lizard problem, and it arrived in someone’s living room first.
The Argentine black and white tegu (Salvator merianae) is a four-foot-long, 10-pound omnivore native to the rainforests and savannas of South America. It is also, as of right now, spreading across at least 30 counties in Georgia. The Georgia Department of Natural Resources (DNR) first began fielding reports of tegus in the wild in 2018, and since then, 30 individuals have been caught or killed in Tattnall and Toombs counties alone. As of June 2026, sightings have stretched from Lyons to Reidsville in the southeastern corner of the state, and hatchlings where females can produce up to 35 eggs per year, are expected to begin emerging this summer.
How did they get here? Almost certainly through the exotic pet trade. Illegal releases by pet owners who underestimated the long-term commitment of keeping a large, semi-wild reptile are the most widely accepted explanation. Tegus are commonly sold in pet markets across the United States, and in some states, residents do not even require a permit to own one. That regulatory gap is not just a nuisance, it is a pipeline for ecological disruption.
A Threat That Touches Everything
The tegu’s impact on Georgia’s native wildlife is not abstract. Tegus are opportunistic feeders that prey on the eggs of ground-nesting birds such as quail and wild turkey, as well as the young of gopher tortoises and American alligators both of which are protected species. Their presence directly threatens the gopher tortoise, a keystone species whose burrows provide shelter for more than 350 other animal species. They also consume chicken eggs, small live animals, fruit, and carrion, meaning their ecological footprint is wide.
But predation is only part of the story. Tegus, like many reptiles, can carry Salmonella, raising concerns about bacterial contamination of agricultural crops and transmission to domestic animals and humans. Authorities have also warned that tegus may introduce exotic parasites to native wildlife populations. This is zoonosis in slow motion, not a headline-grabbing pandemic, but a quiet accumulation of risk that builds as populations grow.
The situation in South Florida offers a sobering preview of where unchecked invasive reptile populations can lead. The Burmese python (Python bivittatus), introduced through the pet trade just as the tegu was, is now an established breeding species across Miami-Dade, Monroe, and Collier counties, with documented ranges extending throughout the Florida Everglades. The ecological cascades from established python populations are well-documented and alarming. Research published in peer-reviewed journals has linked Burmese python predation to the collapse of large and medium-sized mammal populations in the Everglades, which in turn has shifted mosquito feeding patterns dramatically toward rodent reservoir hosts increasing the transmission risk of Everglades virus, a zoonotic pathogen, by more than 400% compared to historical baselines. That is the connective tissue between an escaped pet and a public health outcome; a chain that can be invisible until it is already well-established.
Wildlife Issues Never Stand Still
The tegu and the python illustrate something that professionals in wildlife forensics, conservation, and criminal justice know well: wildlife threats are dynamic. They emerge from policy gaps, market forces, climate shifts, criminal networks, and individual human decisions made in living rooms and pet stores. The intersection of the illegal exotic pet trade, invasive species spread, agricultural risk, zoonotic disease potential, and enforcement challenges in Georgia is happening right now, not in a decade, not in a journal article queued for review, now.
This is precisely why the whitepaper model matters. Peer-reviewed journals remain the gold standard for scientific validation, but the pipeline from data collection to publication can span years. By the time a study on Georgia tegu populations clears peer review, hatchlings from three more breeding seasons may already be establishing themselves in new counties. And behind that paywall, even the most rigorous science fails to reach the game wardens, county extension agents, local health departments, and school educators who need it most.
Whitepapers fill that gap. They are rapid, authoritative, openly accessible, and most critically multidisciplinary by design. A whitepaper on the Georgia tegu can address the ecological threat in one section, the exotic pet trade’s legal architecture in another, the zoonotic disease risks in a third, and the policy recommendations in a fourth. It can speak simultaneously to the wildlife biologist, the law enforcement officer, the policymaker, and the public. That kind of reach is not a compromise in rigor it is an expansion of impact.
From Georgia’s Fields to the Global Stage
The Laker Wildlife Initiative at Clayton State University has built its whitepaper program on exactly this premise. The Initiative’s open access repository is designed to make research findings available to practitioners, students, and community partners worldwide, without the barrier of a subscription or a six-month publication queue. The issues wildlife professionals face is rarely contained. The illegal exotic pet trade that deposits a tegu in southeast Georgia is connected to the same global networks that move rare reptiles, birds, and mammals across international borders as contraband. As mentioned in our other blog posts, wildlife crime is estimated to generate up to $216 billion per year globally, often run by transnational criminal networks that also traffic drugs, weapons, and people.
The tegu arriving in Tattnall County is a local story. It is also a global story. And the whitepaper is the format that can tell both versions quickly, accessibly, and to the audiences that need to act.
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