Endothermy, or the ability to maintain body temperature at a constant and elevated level, is a signature mammalian characteristic. But global climate change is affecting mammalian temperature regulation in a variety of ways as it reshapes natural habitats. Understanding the impact of temperature fluctuations on mammals that inhabit diverse environments is critical to identifying vulnerable read more Levesque’s NSF CAREER award supports study of small mammal thermoregulation, energy use in changing climate