Pigs can wag their tails like dogs and like classical music; chickens lost their ability to fly with domestication and balance on one leg to rest; baby sheep learn how to run in the first few hours of life. These are just a few of the fun facts relayed in Pigology, Chickenology, and Sheepology! The beautifully illustrated encyclopedias cover the species' history, breeds, cultural significance, and more! Recommended for ages 6 to 10, but grown-up animal lovers will definitely get a kick out of them too.