Sealed in a protective suit of his own design, an African bullfrog surfaces from deep underground. From Nature's KALAHARI: THE GREAT THIRSTLAND, airing JULY 8th ON PBS (check local listings.) Shot in high-definition, this film by renowned naturalist filmmaker Tim Liversedge captures the astonishing ecological spectacle of Kalahari. <br /><br />For more information, visit <a class="link" rel="nofollow" href="http://www.pbs.org/nature">http://www.pbs.org/nature</a>
