Want to know what dogs are thinking? What they feel, and what they can smell with that great big nose of theirs?     Here's your chance to experience the world nose first, from two feet off the ground. What do dogs know, and how do they think? The answers will surprise and delight you as dog owner and scientist Alexandra Horowitz explains how our four-legged friends perceive their daily worlds, each other, and us! This book is as close as you can get to knowing about dogs without being a dog yourself.