"What is it like to be a puppy? Alexandra Horowitz tries to find out, spending a year scrutinizing her puppy's daily existence, and poring over the science of early dog development. Few of us meet our dogs at Day One. The dog who will, eventually, become an integral part of our family, our constant companion and best friend, is born without us into a family of her own. A puppy's critical early development into the dog we come to know is usually missed...