Bats use SONAR (Sound Navigation & Ranging).Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
Large units where sheep are reared in Australia are called sheep stations. The term applied to large animal farms inSouth America is estancias. The ranches or sheep stations consist of large areas of natural pasture and also the ranch house and some area devoted to supplementary feed crops.