Mammals have fixed body temperature, but this mammal has a body temperature range. This mammal is ______

Correct answer. It has a body temperature ranging from 77 - 98.6 degrees and this keeps changing with seasons. Warm-blooded creatures, like mammals and birds, try to keep the inside of their bodies at a constant temperature. They do this by generating their own heat when they are in a cooler environment, and by cooling themselves when they are in a hotter environment but keep body temperature fixed or same throughout the year e.g. 37 degrees celsius in humans. However, Echidnas maintain a range of body temperatures which usually lies between 77 and 98.6 degrees Fahrenheit and have difficulty cooling down.There are some mammals who are not able to tolerate extreme conditions so they show different adaptations e.g. hibernation, to adjust in such conditions without compromising on their thermoregulation.