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(Bar-Ilan University) With the Law of Brevity in mind, researchers examined whether call amplitude, rather than call duration, might be the main factor by which animal vocal repertoires are optimized. They fitted rock hyraxes with audio recorders and logged all of their calls, creating full vocal repertoire. The researchers demonstrate how changing necessities can affect the development of different voices for various purposes, and provide clues as to how the complexity of human language began to develop.
Original Article: Researchers decipher small Dead Sea mammal's vocal communicationNEXT ARTICLE