Welcome to the wonderful world of pigs Pigology is filled with incredible pig facts told in a playful tone by Daisy Bird, with irresistibly charming illustrations by rising star Camilla Pintonato. Pigs are full of unexpected surprises. Did you know that when a pig is happy, it will uncoil its curly tail and wag it just like a dog? Or that feral hogs can detect odors from seven miles away? Pigology/i> delves into the history...