Dr. Ralph Emilio Peterson follows rats around New York City with a mic and a camera. Is it a silly pet project, or a creative pest control solution? Dr. Peterson discuss his research, and we get a sneak peak into the secret "language" of rats.

Creator & Host: Houda Khaled

Music by Blue Dot Sessions (www.sessions.blue)

Link to the preprint: https://www.biorxiv.org/content/10.1101/2025.07.21.665423v1.full

Full transcript and rat videos at https://frivolousscience.substack.com/

***Correction: I say that the rat recordings are pitched up for us to hear, but they are actually pitched down! They are altered from high frequency (that we can't hear) to lower frequency.***