Algae are probably the most overlooked of all plants. These are aquatic plants that can be a single cell, or a 20-foot long seaweed, yet they live mostly out of sight. Still, algae play huge roles in our day to day lives. Algae extracts are ingredients in an enormous number of products we use, from cottage cheese to skin cream. Algae are used in biofuels, pharmaceuticals and even surfboards. Much of this research happens in San Diego's laboratories. In this episode, we'll talk about what algae are, visit UCSD's research laboratories and field stations, see a farm that grows algae for human food supplements in the desert, head to Mexico to see how algae surfboards are made, and much more.