Zebra Tailed Lizard perching himself upright on a rock in the Arizona desert. During the hottest times of day, lizards may stand alternately on two legs. They can even run on their hind legs for short distances. Zebra-tailed lizards are the fastest lizards in the desert.
Canon 20D & Canon 70-300mm IS @300mm; 1/320 sec; f/6.3; iso 200. - Best viewed large.