I once had several pet iguanas, most of the time that had their run on the house. Because they need direct sunlight to process A-D vitamins. While at work I put them in an outdoor cage, during the winter on days that are at least 70 degrees.
I had gotten home, when the doorbell rang, ot was two ladies with AWAKE and WATCHTOWER in their hands, when said, "Look at that big lizard".
It was Moe, my male iguana, who somehow got out of the cage, who ran directly up my oak treeIt appeared that someone had released the slide bolt on the cage. My female was still on a limb in the cage.
I tried hosing Moe down, but he just climbed higher into the tree.
Two days later, it was a hard freeze and stayed cold for several days, and he fell from tree. He was frozen solid, and I could hold him by his tale like an iguanasicle.
I called my vet, who told me to fill the tub with warm water and put Moe in to bring him out of hibernation. A few hours later, he was back to his green normal self.