North American gardeners may be puzzled by their counterparts in Western Europe's vituperation of moles. What damage can these rarely-scene little fellas do to lawns and gardens? Europe's version is different, very different. The size of a small cat, it excavates an extensive series of tunnels in pursuit of worms and other prey. In doing so, the excavated earth is pushed up into a series of 'mole hills.' First recorded there in Elizabethan times, as lawns and grass tennis courts became popular they have been the despair of groundskeepers and amateur gardeners ever since.