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- Mar 25 Sun 2012 23:22
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Animals and Echolocation
While it is apparent that most animals are able to produce sounds of their own, the reasons behind animal sounds are not often known. It is assumed that, like humans, animals produce sounds for a variety of reasons. In general, it is thought that animals communicate much like the way humans talk, though in a more primitive sense. Some animals, however, seem to have advanced aural abilities, some that even humans lack, one of whichis what we refer to today as echolocation.
Echolocation, also known as biosonar , is the way an animal uses sounds and their echoes to examine their surrounding environment and objects in it. Using echolocation, an animal can hunt for food, avoid danger, or virtually any task that humans use sight to accomplish. In many ways, echolocation operates similarly to a boat's or submarine's sonar, and this relationship was actually one of the major reasons for the initial discovery of echolocation（by whom?）. In World War II, a major development was that of sonar for detecting submarines. The devices used to pick up those sounds, called hydrophones, also picked up many sounds from sources that were found to be whales or dolphins.
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