Let's make this birthday one to remember.

73 years old (Born on June 28, 1951)

Happy Birthday, Mark! Another year older and still charming elephants better than most of us charm people. Your incredible adventures around the globe have inspired many—though we're pretty sure your elephant friends are secretly planning a surprise party for you right now.

Your recent successes in wildlife conservation continue to amaze everyone; clearly, you're aging like fine wine—or perhaps more accurately—a timeless explorer with impeccable style. May this birthday bring as much joy and laughter as you've brought into our lives (and hopefully fewer close encounters with mischievous pachyderms). Cheers to another unforgettable journey ahead—you legend!