You find them in ancient cave paintings. You find them in masterpieces by Renaissance artists. You find them on greeting cards, stationery, bookmarks, linens, and decorative home accessories. You find them in different lands, as part of vastly different cultures, in all sizes, shapes, and forms. What are they? Dogs. For millennia, dogs have been an integral part of our lives, protecting us, helping us, and loving us. In turn, we have shared our homes, our food, even the raising of our children with these animals who are so dear to us.