Elephants, horses, camels, elephants, oxen, dogs, mules… From the dawn of time, humans and certain animals have developed a complex synergy, a reliance on one another that has, at its root, the meeting of both of our most basic needs: food and shelter. A delicate balance of co-existence—in many cases fraught with domination and cruelty, and in countless relationships an exchange of deep love and affection, often times both.