This website is the Web companion to the two-part NATURE documentary on the Kalahari Desert, which aired on PBS during fall 2003. The first episode, Kalahari: The Great Thirstland, explores the intense extremes of the Kalahari landscape, where wildlife "struggle for survival on the African plains." The site offers a number of Web-only extras, including a species guide in the form of animal trading cards, a slide show showing seasonal change in the Kalahari, and more. Episode Two, Kalahari: The Flooded Desert, explores the desert wetland of the Okavango Delta, "one of the most unusual ecosystems in one of the harshest regions in the world." The Web companion for this episode can by accessed through the first website, and it's here that teachers will find an interdisciplinary lesson plan designed for grades 3-5. The lesson focuses on the rich diversity of Kalahari wildlife, and uses a number of interactive activities from other websites (links provided). Web-only features for this episode include an interactive journey through the Okavango Delta, a behind-the-scenes interview with the film's director, and of course, related links. [RS]