Ross Perlin is the Assistant Director of the Endangered Language Alliance. He's a linguist who specializes in Yiddish and the languages of Southwest China. In this episode, he talks with host Chris Duffy about his work to save the world's languages. Comedians Christian Finnegan, Anna Drezen, and Rachel Rosenthal try to guess what Ross studies and learn how to speak Yiddish in the process. Technical direction by Kevin Brunswick.

Dr. Richard Primack (Boston University) has spent his career studying the effects of climate change on Walden Pond, comparing modern conditions to those Thoreau observed. Comedians Myq Kaplan, Ken Reid, and Lori Strauss try to guess what Richard studies and then learn about the similarities between climate skeptics and people confused by the television show LOST, the effects of an earlier spring, and the history of "Where's Waldo?" Hosted by Chris Duffy. Technical direction by Kevin Brunswick. 

Dr. Joy Reidenberg, the world's leading expert on whale blowholes, explains the secrets of cetology to comedians Christian Finnegan (Comedy Central), Anna Drezen (MTVu), and Harrison Greenbaum (ABC). What causes a whale to explode? How can you avoid picnicing on an ancient whale burial ground? What's the grossest way to get your own row on a plane? You'll find out in this episode of You're the Expert. Hosted by Chris Duffy. Technical direction by Kevin Brunswick.