Fig. 5. Mean body temperature of six captive Arabian sand gazelles in Mahazat as-Sayd, exposed to three different food and water regimens, as a function of time of day. Values are means ± s.d. for 3 days when food and water were provided ad libitum, for 3 days when water was denied, and for 3 days when both food and water were denied, in August 2004.