"Native Seeds Return" - The folks at Native Seed Search have been safe-keeping seeds for tribes, farmers and gardeners for decades. This model working farm outside of Tucson, AZ, has shared generations of over 1800 varieties of seeds that were in danger of disappearing. One of those, white Sonoran wheat, has inspired award-winning bread that's lead to a proud new local industry. "Bees of The Desert" - The Sonoran Desert may have the most species of bees in the world. These "single mother" bees make their homes in the ground, in cactus, and other desert habitat that's highly specialized to serve these mutual relationships. Scientists are still discovering and cataloging their unique DNA. But what happens when honeybees come into their territory? "Desert Wild Cats" - University of AZ Wildcat Research Center, along with an army of citizen scientists use the latest methods to gather DNA on jaguars, ocelots, bobcats, and mountain lions. How has DNA field science evolved to help us understand the movements and habits of these elusive animals?