Dreadnoughtus is the biggest dinosaur ever found. Dr. Ken Lacovara (Rowan University) is the paleontologist who discovered it. He tells comedians Aparna Nancherla, Hari Kondabolu, and Maeve Higgins all about tiny headed dinos, breaking rocks, and how he once intimidated Harrison Ford. Recorded at the Franklin Institute as part of the 2016 Philadelphia Science Festival. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Tonia Hsieh (Temple University) is a biomechanist who discovered how geckos are able to stick to walls. She's using her findings to build better robots. Recorded live at the Philadelphia Science Festival, this episode features comedians Aparna Nancherla, Maeve Higgins, and Hari Kondabolu. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Angela Belcher is an MIT professor and a MacArthur genius. She teaches comedians Aparna Nancherla, Josh Sharp, and Bobby Smithney about how she uses viruses and bacteria to build next generation batteries, solar cells, and much more. She is literally a genius. Recorded at the 2016 Cambridge Science Festival with funding from MIT's de Florez Fund for Humor. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Stefan France is a chemist at Georgia Tech working on synthesizing new molecules for medicine. He teaches comedians Josh Sharp, Amber Nash, and Shalewa Sharpe about the life of a chemist and why both chocolate and wine might be good for you. Recorded at the 2016 Atlanta Science Festival. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Mande Holford studies venomous sea snails, the "assassins of the sea." Her research holds clues to treating Alzheimer's, solving opioid addiction, and much more. Panelists Tracy Clayton (Another Round), Zhubin Parang (head writer for The Daily Show), and author Maeve Higgins learn about the mysterious world of these underwater killers. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Did you know that you're about 2% Neanderthal? Bridget Alex is a Harvard anthropologist and evolutionary biologist studying how/when our ancestors met and bred with Neanderthals. She teaches comedians Sam Ike, Kenice Mobley, and Steve Macone about the mysteries of evolution and a caveman's love life. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Noah Wilson-Rich is the chief scientific officer at the Best Bees Company. Comedians Bobby Smithney, Julia Claire, and Gary Petersen learn about Noah's research and dive into the secret lives of bees, what it's like to be stung 500 times, and why it's good to be the queen. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Gary Fireman is the chair of Suffolk University's Psychology Department. He's an expert on nightmares and disturbed dreaming. Comedians Maeve Higgins, Charlie Hankin, and Matt Porter find out where nightmares come from, what they mean, and how they compare to an acid trip. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Natalie Reeder is the official wildlife biologist at San Francisco International Airport. Natalie helps comedians Kristen Schaal, Eugene Mirman, and James Adomian understand how to keep birds away from engines, when snakes actually do get out on planes, and why SFO is full of frogs. Recorded in front of a live audience at SF Sketchfest 2016. Hosted by Chris Duffy. Produced by Pretty Good Friends.

Dr. Jean Alupay is an octopus expert at USC. Comedians Scott Adsit (30 Rock), Emily Maya Mills (Parks and Rec), and Josh Sharp (CBS) try to guess what Dr. Alupay studies and learn the mysteries of the deep. Whether you're a human or a three-hearted boneless sea creature, this episode is for you. Hosted by Chris Duffy. Produced by Pretty Good Friends. Recorded in front of a live audience at the Nerdist Showroom in Los Angeles, CA.