Even though fish can be very small, it’s obvious that they have mouths. But what’s inside that mouth? Tiny teeth? A little tongue? A uvula hangy ball at the back of their throat? Tierney Thys, a marine biologist and National Geographic explorer, helps us understand at least one element of a fish’s mouth - whether they have tongues!  Got a burning Moment of Um question that you just can’t lick? Send it to us at BrainsOn.org/contact, and we’ll help you get a taste for knowledge!