naked mole rat
a nearly hairless rodent, Heterocephalus glaber, of eastern African dry steppes and savannas, having two protruding upper and lower front teeth and living entirely underground in colonies, based on a single breeding female and specialized workers of both sexes.
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Also called sand rat, sand puppy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019