Whistling is a skill used to communicate over distances—a whistle can mean anything from “you’re cute” to “time to come home for dinner.” There’s a complex series of mechanisms in the mouth that need to come together to make a whistle. Hosts Ira Flatow and Flora Lichtman discuss all things whistling with professional musician and whistler Wanda Civic, aka MCP, and speech language pathologist Aaron Johnson. Guests: Wanda Civic aka MCP is a musician and whistler based in New York, New York. Aaron Johnson is a speech and language pathologist at the Voice Center of New York University, in New York, New York. Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.