http://abcnews.go.com/video/playerIndex?id=9502814
they dont die....they go into a comatose state and their bodies "shut down." they are fine once the temp rises. and yes, they do fall out of the trees, but its because they are simply frozen. haha. and iguanas bodies are built to withstand 50 ft drops.relax see the video above. its actually sort of funny...on some level anyway.