Actor/director Pollyanna McIntosh (@PollyAMcIntosh) of The Walking Dead, Lodge 49 and her directorial debut Darlin' joins Matt and Andy to discuss Dennis dentists, human-sized penguins, gay penguins with an egg, an ebola cure, good environmental news, bad environmental news and tails for old people.

This episode is brought to you by The Great Courses Plus, offering Probably Science listeners a free month of unlimited access to thousands of lectures by visiting TheGreatCoursesPlus.com/probably