This week, South Florida is bracing for colder air and a biting wind chill that could lead to an unusual local spectacle: falling iguanas. While this may sound strange, it’s a well-documented phenomenon tied to the unique relationship between these cold-blooded reptiles and the region’s occasional chilly weather.

The History of Iguanas in Florida

Green iguanas, the species most commonly associated with these cold spells, are not native to Florida. They were introduced in the 1960s, likely as part of the exotic pet trade. Over the years, they have thrived in Florida’s subtropical climate, which mirrors their natural habitat in Central and South America, as well as certain Caribbean islands. The warm weather provides the perfect environment for these reptiles to grow and multiply.

However, their adaptation has limits. When a cold front sweeps through, temperatures dropping below 50 degrees Fahrenheit can cause iguanas to lose their grip on tree branches and tumble to the ground. While this condition is temporary, the sight of iguanas lying motionless can alarm residents and visitors unfamiliar with the phenomenon.

Why Cold Weather Paralyzes Iguanas

As cold-blooded creatures, iguanas rely on external heat sources to maintain their body temperature. Their daily routine includes basking in the sun on warm surfaces like sidewalks, tree limbs, and rocks. These behaviors keep their body systems functioning properly.

When the air temperature dips to 40–50 degrees, however, the reptiles’ bodies start to shut down. Their muscles stiffen, rendering them immobile. This temporary paralysis can leave them vulnerable to predators such as bobcats and coyotes. If the cold snap persists, the effects can be more severe, potentially leading to bacterial infections in their digestive systems and even death.

Notably, South Florida saw a major cold-induced die-off in January 2010, when temperatures in West Palm Beach dropped into the 30s on nine occasions over 11 days. This extended cold snap devastated the iguana population, highlighting the risks of prolonged exposure to low temperatures.

What Should You Do if You See a Fallen Iguana?

If you come across a seemingly lifeless iguana, it’s important to remember that the animal is likely not dead, just temporarily immobilized. As temperatures rise, the iguana will usually regain mobility and return to normal behavior. However, despite their vulnerable state, iguanas are still wild animals. They can bite or scratch if handled, so experts advise against touching or moving them. Letting nature take its course is usually the safest and most effective approach.

Implications for Florida Businesses

This seasonal phenomenon impacts more than just wildlife enthusiasts—it also has ripple effects on local businesses and professionals. Landscaping companies and tree services may see increased demand to manage areas where falling iguanas are common, especially in residential or commercial properties. Restaurants and outdoor venues might need to take precautions to ensure their spaces remain free from unexpected iguana interruptions during cold snaps.

For Florida probate attorneys, the situation underscores the importance of addressing unique challenges tied to the state’s environment. Property disputes may arise from damage caused by invasive species, while homeowners’ associations and local governments might consider ordinances to mitigate the effects of iguanas on communities. As these reptiles are classified as non-native and invasive, managing their impact could create legal complexities, offering attorneys opportunities to advise clients on their rights and responsibilities.

In conclusion, the sight of falling iguanas may be a quirky reminder of Florida’s unique climate, but it also highlights broader issues tied to the state’s ecology and economy. For businesses and legal professionals alike, staying informed about these phenomena ensures they are prepared to address the challenges they bring.