Mole-Rats
Living Environment
In addition to a food chamber, the burrow system also features chambers used for nesting and as a communal toilet. In addition, mole-rats dig deep, blind-ended tunnels they may use to escape enemies or to cool themselves; these tunnels may also function as drains in the event of flooding. Normally, the burrow system is not open to the surface, but is tightly sealed to provide protection against weather, extremes of temperature, and predators. Openings are necessary during tunnel excavation, in which a digging mole-rat loosens the soil with teeth or forelegs, pushes it beneath its body, and kicks it behind. When enough soil has accumulated in this way, the mole-rat backs up in the tunnel, pushing the soil behind it; the soil is directed out a side tunnel to the surface, where it is kicked out. With some species, the soil
A mole rat (Cryptomys hottentotus) from southern Africa.
Additional topics
Science EncyclopediaScience & Philosophy: Methane to Molecular clockMole-Rats - Physical Attributes, Living Environment, Social Life