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Sonar is a way of communicating, navigating, and detecting objects by using sound propagation. For the remainder of this lesson, we will focus on underwater sonar, which is used by submarines and some aquatic animals to perform the previously mentioned tasks.
Active sonar, the transmission equipment used on some ships to assist with navigation, may be detrimental to the health and livelihood of some marine animals.ome marine animals, such as whales and dolphins, use echolocation or biosonar systems to locate predators and prey. It is conjectured that active sonar transmitters could confuse these animals and interfere with basic biological functions such as feeding and mating.