"A. harrisii" has a high body temperature of 97-107 degrees Fahrenheit (36.7 - 41.6 °C) In order to protect itself from the heat of the Sonoran Desert, "A. harrisii" carries their tails over their bodies in order to provide shade. "A. harrisii" also participates in a heat reduction method where individuals move into shaded positions and lie spread eagled against the ground. This is referred to as "heat dumping". They are active during the day, and do not sweat but otherwise reduce temperature by salivating.