Discover the Extreme World, one of our bestselling Discovery Channel books, is packed with remarkable facts and amazing photos. Adults, teenagers and kids aged 9+ will be glued to every page, dipping in and out of the facts they find most fascinating. . Shortlisted for the Blue Peter Book Awards 2012. . Covers key subject areas of Earth, nature, technology, science, history and people in a unique way to keep kids engaged. . Hundreds of exciting images to give your child a thrilling, positive reading experience. "This exciting fact-filled book is vividly written, expertly researched and brilliantly designed and will keep children engrossed for hours." Blue Peter Books Awards Hundreds of awesome photographs and thousands of hard-to-believe facts showcase our incredible planet and everything on it. Discover the Extreme World focuses on the extremes of core reference subjects. From deadly animal battles and futuristic spy technology to super volcanoes and the coldest places in the Universe, the dramatic, action-packed text, astounding facts, thrilling photography and dynamic design concepts will inform and enthrall. Six super chapters inside Discover the Extreme World: . Active Earth: Find out how our planet is at the mercy of awesome natural forces. . Awesome Animals: Watch wild animals fight for survival and see the measures they take to win. . Incredible Science: Discover the breakthroughs that have shaped the world and our understanding of it. . Ultimate Machines: Welcome to the supersonic world of machines where today's technological marvels are tomorrow's old news. . Super Humans: Be amazed at the feats of human beings and the extraordinary new boundaries that have been set. . History Revealed: Go back in time and uncover extreme events, ideas and people that have changed history. Kids will love to discover the world with fun facts such as: . At over 390 mi (630 km), Mammoth Cave in Kentucky, U.S., is the longest cave system in the world. . Clocked at more than 65 mph (105 km/h) the sailfish is the fastest swimmer in the world. . Carbon fibres are four times stronger than steel when pulled, yet just one quarter of the weight.