Naked mole rats, on the other hand, are relatively safe in the wild once they've established a burrowed colony. Predators can't easily slither into their labyrinthine underground homes, and the mole rats mostly feast on roots and tubers, meaning they hardly ever have to leave the house. The queen mole rat, much like a queen bee, is guarded by a plethora of worker rats. Evolutionarily speaking, that means traits related to longevity could be selected for over traits that allow fast reproduction. "There's something special about mole rats," says Braude. "But you want to make sure you get right what's special, or you're not going to be looking in the right places for further relevant, cool biology."