Some people prefer the thrill of leaping out of a plane, gravity at its finest, the ground below, rushing at them like a Category 4 hurricane, the adrenaline palpable. My heart races just thinking about it. But for me, walking alongside a 200lb African Lion, or  coming to face-to-face with a Wood Bison is not only a thrill, but a privilege. And when I’m thousands of miles from home, the distance is often forgotten when a lazy pup trots on over for a simple head scratch or nose around for something to eat. With a pocket perpetually full of kibble, and an uncanny ability to attract even the mangiest of…