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What is sensory drive, and how has it affected the evolution of communication? How do surf perch and other animals sense and signal in noisy environments? On this episode of Big Biology, in front of a live audience at the Society of Integrative and Comparative Biology Annual Meeting, we talk with Molly Cummings, a professor of integrative biology at the University of Texas at Austin. We discuss the balance animals must strike between standing out and blending in to the places they live.