?Covering over 50,000 years of history, from cave-dwelling to the present day, this appealing nonfiction picture book chronicles fascinating scientific details and the history of how dogs learned to live cooperatively alongside humans.

Of all the animals on the planet, dogs have the widest range of roles in our daily lives. They're protectors, helpers, lifesavers--but most of all, they're family.

While we know dogs to be lovable and full of personality, they have also historically improved our lives in many practical ways, like guarding livestock to help humans form the first settlements, cleaning out infectious wounds, and finding food.

In this beautifully illustrated and thoroughly researched book, award-winning author and illustrator Lita Judge explores how our lives are intertwined with dogs'--and that's what makes them our best friends.