The Xventure Explorers can't bear going ape! Jake and his worried zoology exploration team heads to Sumatra to find their new teammate Tazan is missing. At the same time, a cadre of chimpanzees show up in Yellowstone National Park! Pandas and sloth bears and spider monkeys all over the world are acting strange and aggressive. Join the Xventures Explorers as they discover who would win in a clash between bears and gorillas and follow the biological clues to locate their lost friend. Available in softcover and hardcover editions.