When I was a little boy, my mother would take me on regular trips to see the life-like dioramas of the African Hall of Mammals at the Museum of Natural History in New York City.

Three years ago, British geology student Kimberley Wyatt flew to Costa Rica to protect baby turtles from egg poachers.

Almost four years ago, about six months after I started working at Earthwatch, I had the pleasure of chatting with one of our scientists,