The iguanas won’t be dead, just immobilized, and will bounce back when they get some sun. Once a certain temperature is reached, Iguana's shutdown just like an overheating laptop.
“Even if they look dead as a doornail — they’re gray and stiff — as soon as it starts to heat up and they get hit by the sun rays, it’s this rejuvenation,” Ron Magill, communications director for Zoo Miami, told The New York Times in 2018. “The ones that survive that cold streak are basically passing on that gene.”
Iguanas can become aggressive and bite or scratch when they thaw out, so if you see the reptiles, leave them alone.
However, as you'll see in this video, A LOT of people harvest them for food.
photo: getty Images