As he approaches the end of a happy and productive career teaching biology at BYU, Professor Jack Sites reflects on the unknowable expanse and inexhaustible delights of Nature, and its study. Here, truly, is the greatest of historical disciplines, a vast network of lineages that involves and embraces us all.

Dawn Teuscher makes her way over to the program by way of BYU's Department of Math Education. You're not all tuning out now, are you? Come back here! Listen as Dawn calmly, caringly illustrates some of the many applications, pleasures and, yes, beauties of this misunderstood not-so-monster.

Seth Bybee continues our series of biological discussions by explaining the particularities of scientific theory, and the semi-certainties that that concept suggests. After that he and Dean move onto something that might have frightened some of you, and maybe without reason. It's okay. We all evolve!

BYU Scandinavianist Chip Oscarson rejoins Dean to celebrate the matchless, magisterial cinema of this great Danish film director.

BYU biologist Roger Koide discusses the fundamental interdependency of all species, great and small. He shows how an understanding of this quite wonderful reality can move us past the antagonism we sometimes feel toward other organisms, or to the positive voices that properly advocate for them.

Stan Benfell, a professor in BYU's department of comparative arts and letters, visits Dean to educate him about some very big words that we've all heard of, and might not know enough about. Classical? Medievalism? Romance? Renaissance? These sagas all unfold here.

College of Humanities professors Daryl Lee and Chip Oscarson visit the show on the 50th anniversary of BYU's celebrated International Cinema program. They affirm that though subtitles may seem hard at first, being open to the world's films may just help us to solve some of the world's problems.

Acclaimed essayist Patrick Madden rejoins the program to talk Dean through some of the rudiments, challenges and satisfactions of simultaneously living and writing your life.

Between the two of them, Gordon and Rella Christensen have more dentistry-related university degrees than you can even brandish a drill at. They bring all of that knowledge and experience, together with inspiring amounts of conviction and devotion, to show how if you take care of your teeth, your teeth will take care of you.

Dean warily welcomes three actual and authentic Millennials to the program. They tactfully try to tell him about how obsolescent he obviously is. He counters with unrelated and unconvincing tales about his cool youth. Altogether, a pretty depressing prospect!