The type of adaptation that allows animals to thrive in extreme temperatures is referred to as physiological adaptation. These adaptations involve internal body processes that enable organisms to regulate their temperature, metabolism, and energy use in response to environmental extremes. For example, some mammals have developed thick fur to insulate against cold or the ability to sweat and pant to cool off in heat. Other adaptations may include changes in behavior or the ability to enter a dormant state during harsh conditions, ultimately enhancing survival in diverse climates.