Moles are small cylindrical mammals adapted to a subterranean lifestyle. They have velvety fur; tiny or invisible ears and eyes;reduced hindlimbs; and short, powerful forelimbs with large paws oriented for digging. Moles burrow lawns, raising molehills, and killing the lawn, which is why most people consider moles to be pests. They can undermine plant roots, indirectly causing damage or death. However, contrary to popular belief, moles do not eat plant roots. A mole's diet primarily consists of earthworms and other small invertebrates found in the soil, and a variety of nuts. The mole runs are in reality 'worm traps', the mole sensing when a worm falls into the tunnel and quickly running along to kill and eat it.