How often do you think about the seeds buried underneath your feet? Thor Hanson, biologist and author of The Triumphs of Seeds, takes us through the diverse biology and cultural history of seeds, from a date palm that sprouted from a 2,000-year-old seed to the dispersal ability of the java cucumber seed that inspired human flight. (Read an excerpt from the book here.)

Then, a new documentary examines the fight to save seeds, in all their genetic diversity. Seeds of Time, directed by Sandy McLeod, follows agriculturalist Cary Fowler on his quest to secure the world’s seed banks, and with them, the crop diversity that will help farmers adapt to climate change.