Ink is amazing. It helps us captures our thoughts, comes in many colors and some of it is even made by animals! In this episode we explore the history of this special substance. We’ll also talk squid ink with biologist Sarah McAnulty and explain how tattoos work.

Plus, your poems about ink! Obviously there’s also a Mystery Sound and a Moment of Um that answers the question: what happens if salt is poured on snails?

This episode is sponsored in part by Betty Crocker - bettycrocker.com and Laurel Springs School - laurelsprings.com/brainson