* 新增当日价格，并返回该价格的跨度
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Today, this ability to maintain a stable body temperature—called homeothermy—is known to exist among myriad species of mammals and birds. But there are also some notable exceptions. The body temperature of the fat-tailed dwarf lemur, for example, can fluctuate by nearly 45°F (25°C) over a single day.
Photograph: Henri Robbins。关于这个话题，体育直播提供了深入分析