Humans have shared the earth with other animals since the dawn of our existence. Over time we have become inter-dependent with many of our fellow creatures, sharing our lives, our labors, our play and our travels.
The wonderful strangeness of the Circus reveals this symbiotic relationship at its most extreme, where animals perform like people; people perform like animals and audiences retreated into children.
All the world is a stage, And all men and women merely players: They all have their exits and their entrances; And one man in his time plays many parts. ~Shakespeare