Fossorial
Spending major portions of life underground, anatomically specialized for digging and subterranean movement.
European Mole
A velvety black digger that lives underground, in tunnel networks that can run hundreds of metres.
Golden Mole
The sand-swimmer with no visible eyes, and a middle-ear bone denser than any other land mammal's on record.
Naked Mole-Rat
The nearly hairless, essentially cold-blooded tunnel digger that shrugs off acid and chili burns, survives 18 minutes with no oxygen at all, and outlives every other rodent on record.
Pink Fairy Armadillo
The world's smallest armadillo, an Argentine sand-burrower wearing a shell of bony plates and hardened scales.
Ringed Caecilian
A legless burrower about 40 cm long whose newborns eat their mother's skin and drink milk from her vent.
Star-Nosed Mole
A semi-aquatic mole armed with twenty-two fleshy sensory tentacles that can identify and eat a piece of prey in as little as 120 milliseconds.