A common housefly has more than 4,000 six-sided lenses in each of its compound eyes. Cats can see in the dark. An owl"s vision is so powerful that it can spot a tiny scurrying mouse from hundreds of feet away. Every animal in nature has eyes that are specially adapted to its environment. In EyeOpeners! you"ll discover the amazing variety of animal eyes, and you"ll find out how each of these animals uses its eyes to survive. Filled with the beautiful close-up photographs of Monika and Hans Dossenbach, this book brings you eyeball-to-eyeball with some of nature"s most incredible creatures and offers every reader a truly eye-opening experience!