A well known phenomenon, Thad, because I did the same during my former career when I had to take difficult decisions. My habitat wasn't a zoo however, but my cabin or on the bridge of my ship, lol. Excellent close-up, my friend. Perfectly done job!
Try to change what you can't accept, but accept what you can't change. Please CLICK HERE to see my journal! Feel free to save my images or to add them to your favorites.