The Naked Mole-Rat (Heterocephalus glaber) is a small mammal in the order Rodentia and the family Bathyergidae. The Naked Mole-Rat is morphologically characterized by its mostly hairless translucent skin and prominent incisor teeth. Naked Mole-Rats have some hair between their toes which they use to sweep dirt. It also has whiskers on both face and tail for navigating subterranean habitats as it is nearly sightless. The skin appears wrinkled because the Naked Mole-Rats are devoid of subcutaneous fat. Naked mole-rats are the only known poikilothermic mammals, that is, their body temperature is variable and related to ambient temperature. These animals have developed physiological mechanisms to withstand thermal variations, including the lack of cutaneous sweat glands, as well as behavioral mechanisms, such as burrowing and huddling
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