Which is smarter, your dog or your cat? How can a gecko dangle by only one toe? Mysteries of Science: Amazing Animals, from the editors of U.S. News & World Report, probes these and many other questions about the Animal Kingdom. The publication, part of the acclaimed “Mysteries of Science” series, is chock full of fascinating reads, from the latest science on animal intelligence (crows recognize faces and macaques can count) and cloning (might the woolly mammoth make a comeback?) to the tales of 10 pet heroes who rescued humans from disaster. Discover how the messages that whales "sing" travel hundreds of miles and how dogs suffering from cancer are contributing to the search for human treatments. Read about Alaska's very own Loch-Ness-like creature, and how the military's dogs, dolphins, and sea lions are helping defend the country. Spend a day with Hickory, the Virginia Scottish deerhound who took top honors at the 2011 Westminster Kennel Club show. And catch up on the latest thinking on how to get Spot to obey, including a few insights from Dog Whisperer Cesar Millan.