Mammals maintain body temperature through a process known as thermoregulation. This involves physiological and behavioral mechanisms that allow mammals to keep their internal body temperature relatively constant, regardless of external environmental conditions. Mechanisms include metabolic heat production, sweat gland activity, and blood flow regulation. For example, when temperatures rise, mammals might sweat or seek shade, while in cold environments, they may shiver or huddle together. This adaptability is essential for survival and proper bodily functions.