They get their heat from the outside environment, so their body temperature fluctuates, based on external temperatures. Most other mammals range from 97 ☏ to 103 ☏ birds have an average body temperature of 105 ☏.Ĭold-blooded animals do not maintain a constant body temperature. For us, the commonly accepted average body temperature is 98.6 ☏ (even though it may vary among individuals). It doesn’t matter what the outside temperature is-they must maintain the same internal temperature. Warm-blooded animals, which are mostly birds and mammals, need to maintain a relatively constant body temperature or they would suffer dire consequences. Animals can be either warm-blooded or cold-blooded. The most important adaptation is how animals regulate their body temperature.
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