Mystery Sounds from the natural world

Molly and Rehema co-host a mystery sound extravaganza episode of Brains On!, part of the Brains On! Universe, featuring adventure field recordist Thomas Rex Beverly. Thomas shares sounds from around the world, including a Sika deer from Texas, a geyser from Yellowstone National Park, a glacier from Iceland, and humpback whales from Hawaii. Rehema and Thomas guess the sounds, and Thomas shares tips for tuning into nature's sounds and stories about recording wildlife. The episode also includes a listener's mystery sound, a message from a teacher using Brains On! in the classroom, and a call for listeners to submit their ideas for wild animal defense mechanisms. The episode concludes with a Brains Honor Roll and a full recording of whale sounds.