Alison Joslyn was biking through Shark Valley in Everglades National Park when she spotted an American alligator clamped onto a large Burmese python, chewing on the snake before swimming off with it still locked in its jaws. Joslyn captured the encounter on video, and the footage quickly spread through news outlets and social media. The scene is more than a striking wildlife moment. It sits at the center of a growing scientific question: how much are native Everglades predators contributing to the fight against one of Florida’s most damaging invasive species?
Why alligator-on-python predation in Shark Valley matters right now
Burmese pythons have decimated native mammal populations across the Greater Everglades for decades. Human removal programs have struggled to keep pace with the snakes’ reproduction. That makes every documented case of a native predator killing a python significant for researchers trying to understand whether the ecosystem has any built-in defense mechanism.
Joslyn’s video was filmed near Shark Valley’s observation tower, a location the National Park Service describes as accessible by foot, bicycle, or tram along a 15-mile loop trail known for wildlife viewing, including frequent alligator sightings. The high-traffic setting raises an interesting question for ecologists. Do visitor-accessible zones like Shark Valley, where alligator densities tend to be high and easily observed, produce more frequent predation events on pythons than remote, hard-to-reach wetlands? If so, researchers could design paired studies comparing juvenile python survival rates in high-visitation versus low-visitation sites. Expanding existing telemetry networks to cover both types of habitat would generate the data needed to test whether alligator predation creates a measurable drag on python populations in specific zones.
No agency has yet published results from that kind of paired comparison. But the raw ingredients for such a study already exist in federal research infrastructure, and Joslyn’s footage adds another data point to the pattern.
USGS telemetry data and the Joslyn footage
The strongest scientific evidence behind this story comes from the U.S. Geological Survey. A peer-reviewed study used radiotelemetry to track juvenile Burmese pythons in the Greater Everglades Ecosystem and documented multiple native predators implicated in juvenile python deaths, with American alligators specifically identified among the species killing young snakes. That research confirmed what wildlife managers had long suspected: alligators do eat pythons, and they do so often enough to register in systematic tracking data rather than just in isolated anecdotes.
Telemetry studies work by fitting snakes with radio transmitters and following their movements until a signal stops or shifts in a way that suggests mortality. When researchers home in on a stopped signal and find only transmitter remains or partially digested tissue, they can sometimes identify the predator from bite marks, stomach contents, or the context of the site. In the USGS work, these field investigations repeatedly pointed to alligators as one of the primary native threats to young pythons, alongside raptors and other carnivores.
Joslyn’s video, distributed through Storyful’s platform and reported by local television outlets, shows exactly the kind of encounter the USGS documented through telemetry. The alligator in the footage is not simply scavenging. It is actively chewing on and carrying off a large python, behavior consistent with predation rather than opportunistic feeding on an already-dead snake. One South Florida newscast emphasized the clash between “two apex predators” and noted that Joslyn has filmed similar encounters at Shark Valley before, suggesting these interactions are not isolated events at this particular site.
Those repeated sightings matter because most documented alligator–python interactions involve either very large pythons preying on small alligators or dead animals found after the fact. Clear, daytime footage of a big alligator consuming a substantial python helps fill a visual gap in the public record and provides scientists with behavioral details that are difficult to capture during field surveys. Video can show how the predator handles the snake, how long the struggle lasts, and whether other animals attempt to scavenge, all of which can inform hypotheses about energy gain and risk for both species.
State and federal agencies are already investing heavily in python removal. The South Florida Water Management District runs a Python Elimination Program that pays contractors hourly rates and bonuses to remove pythons from designated public lands. The Florida Fish and Wildlife Conservation Commission operates a parallel effort called PATRIC that works alongside the SFWMD program. The U.S. Fish and Wildlife Service coordinates additional removal projects across southern Florida. All of these programs rely on human labor to find and remove snakes one at a time, a slow process given that pythons are extremely difficult to detect in dense wetland vegetation.
Against that backdrop, natural predation by alligators and other native species could, in theory, provide free assistance to overburdened removal crews. If juvenile pythons are routinely being eaten before they reach breeding size, the number of adults each female can replace herself with may drop, slowing population growth. But whether that mechanism is strong enough to matter at the landscape scale remains an open question.
Gaps in the evidence and what to watch next
Several things remain unknown. No agency has released an incident report confirming the exact date, time, or GPS coordinates of Joslyn’s filming, beyond general references to the Shark Valley observation tower area. The sizes of the alligator and python in the video appear only in secondary news accounts, not in any official measurement or necropsy record. There is no way to connect this specific predation event to USGS telemetry data or to any python tracked by researchers.
The broader scientific gap is more consequential. While the USGS study confirmed that alligators kill juvenile pythons at rates detectable through radiotelemetry, no published research has yet quantified whether that predation pressure is large enough to suppress python population growth in any given area. Juvenile python mortality from native predators could be substantial, or it could be a minor factor compared with the species’ high reproductive output and the survival of even a small fraction of hatchlings to adulthood.
Answering that question will require more than dramatic videos. Researchers would need expanded telemetry arrays covering both high-density and low-density alligator zones, ideally paired with systematic counts of python nests, hatchling emergence, and adult abundance. Long-term data series could then be used to model whether areas with more alligators show slower python population growth after controlling for habitat, water management, and human removal effort.
There are also behavioral unknowns. It is not yet clear whether alligators actively seek out pythons as prey or simply take advantage of encounters when snakes move through their territories. Seasonal patterns could matter: predation might spike when hatchlings disperse from nests or when water levels drop and concentrate wildlife along canals and sloughs. Understanding those patterns could help managers time removal efforts to complement natural predation, focusing human searches during windows when surviving juveniles are most likely to escape native predators.
For visitors planning trips to Shark Valley, the practical takeaway is straightforward. The trail remains open for cycling, walking, and tram rides, and encounters between alligators and pythons are a real possibility along the route. Anyone who witnesses such an event can contribute to the scientific record by reporting it to park staff with as much detail as possible, including location, time, and estimated sizes of the animals involved. When possible, safely obtained photos or videos, shared with rangers and researchers, can help turn a fleeting wildlife moment into data that informs the long, difficult effort to understand how the Everglades is responding to its most notorious invader.
More from Morning Overview
*This article was researched with the help of AI, with human editors creating the final content.
