T . eques has also developed behavioral thermoregulatory mechanisms for sunlight exposure.
2.
Microgravity and spaceflight may perturb the body s thermoregulatory mechanisms by altering the work efficiency, metabolic rate, or circadian rhythms of heat production.
3.
However, as a homeothermic endotherm it is still faced with the challenge of maintaining a constant body temperature while being exposed to both the day ( light period ) and night ( dark period ) temperatures of its environments . " Phoenicopterus ruber " have evolved a number of thermoregulatory mechanisms to keep itself cool during the light period and warm during the dark period without expending too much energy.