How frigid lizards falling from trees revealed the reptiles’ growing cold tolerance
Some lizards can go to 5.5° C, 4 degrees colder than thought, before they can’t move any more
When temperatures drop below a critical limit, reptiles can lose the ability to move, which can cause the animals to fall out of trees where they were sleeping. This iguana was photographed in Key Biscayne, Fla., following a cold snap in January.
Brett Pierce