Drug resistant bacteria or superbugs are bacteria that have become resistant to antibiotics. This clip discusses how superbugs form and scientists are trying to find ways to fight off these super bugs.

Join Molly of Denali show producer as she reads the book, Crane Song, aloud. The book is based on the episode where Molly comes along with scientists to research animals.

All of the mammals begin their annual migration to avoid the winter. Sid the Sloth's family leaves without him, as they do every year, while Manny the Mammoth migrates in the opposite direction to avoid the warm weather.

Amy and her father prepare to guide the geese south for the winter. They plan out the journey and give the geese flying workouts so they will be able to handle the long flight times.

Contextualizes and describes Gothic architecture, particularly in England and England's rise to prominence out of the Middle Ages.