The prehistoric predator reclaiming its territory in the American South

Nature · Published 26 October 2026 Swipe more like this →

In short: While Florida is known for its millions of alligators, a rarer and more aggressive reptile is making a comeback from the brink of extinction. These ancient survivors are reclaiming their territory, proving that some prehistoric lineages are far more resilient than we once thought.

The American crocodile represents a significant biological success story in conservation. Once facing total extinction, these reptiles are now re-establishing themselves in the southernmost reaches of the United States. While they share a physical resemblance to alligators, their temperaments and survival tactics differ significantly from their more common neighbors. These reptiles are often described as living fossils that have inspired various horror films. Their presence serves as a reminder of nature's enduring resilience.

In contrast to the native crocodiles, Florida currently faces an invasive crisis involving the Burmese python. These constrictors have been devastating the Everglades National Park ecosystem for over a decade. A single python can reach lengths of up to 20 feet and possesses jaws that stretch four times wider than its skull, allowing it to swallow entire alligators. The Burmese python is an invasive species that has wreaked havoc on the environment for more than ten years. These constrictors are capable of growing to nearly twice the size of some human hunters.

The ecological impact is profound: pythons prey on marsh rabbits, wood storks, and Key Largo woodrats, while also threatening the endangered Florida panther by depleting their food sources like feral hogs. Furthermore, they introduced Asian lungworm parasites that have decimated native populations of pygmy rattlesnakes. Beyond direct predation, these snakes disrupt biodiversity by starving big cats and killing native reptiles with parasites. Researchers frequently discover dead pygmy rattlesnakes whose bodies are covered in lungworm infections.

Current eradication efforts rely heavily on human hunters because existing methods are inadequate for a landscape-wide solution. While scientists at the University of Florida are exploring future technologies like CRISPR gene-editing to skew python reproduction toward more males, the immediate defense against these invasive predators remains manual and high-stakes. Professional hunters like Taylor Stanberry have set records for capturing dozens of these snakes using only their bare hands. This manual labor is currently the primary way to slow environmental damage until new technologies become viable.

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