Colonies have a single productive female, or queen
The small naked mole rat, or sand puppy, is native to the drier parts of the tropical grasslands of East Africa, predominantly southern Ethiopia, Kenya, and Somalia. They live in large colonies, in a eusocial organisation with a close analogy to bees, ants, or termites. The naked mole rat is highly unusual as a mammal in several ways, being cold-blooded, eusocial, able to live in severely oxygen-depleted environments, highly resistant to cancers, and relatively extremely long-lived.