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A tiger beetle (Cicindela chinensis) flies on a tether in the laboratory. Researchers play a buzz from feeding bat feeding. When the beetle hears the bat echolocation, it responds by swinging its forewings backwards. These wings contact the beating hindwings and produce ultrasonic clicks in time with the wing beats. The resulting high, rasping sound is the lower frequency component of this noise, which falls within the hearing range of human ears. Read more: Video: Geena Hill/University of Florida
