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Falling Iguanas

A stunned iguana lies in the grass at Cherry Creek Park in Oakland Park, Fla., Wednesday, Jan. 22, 2020. The National Weather Service Miami posted Tuesday on its official Twitter that residents shouldn't be surprised if they see iguanas falling from trees as lows drop into the 30s and 40s. The low temperatures stun the invasive reptiles, but the iguanas won't necessarily die. That means many will wake up as temperatures rise Wednesday. (Joe Cavaretta/South Florida Sun-Sentinel via AP)

Cold-stunned iguanas falling from trees in Florida

Residents of south Florida are on alert for falling reptiles as the temperatures in the region drop.

Reports of iguanas falling from trees have come from several cities in Florida, where temperatures have reached below 10°C (50°F). The cold-blooded reptiles appear to be frozen stiff, or laying on the ground after falling from tree branches. Iguanas, an invasive species in Florida, are unable to self-regulate their temperature, which means their bodily functions slow down when no external source of heat is present, to the point where they go into a state of hibernation.

While the iguanas appear dead, most are actually fine once they warm up.