One winter morning, Robbins and I drove four and a half hours north from Las Vegas, through the desert, to the Tonopah Conservation Camp, a minimum-security prison, where a pickpocket named Gary Scott was serving time.

NEWYORKER: A Pickpocket��s Tale

As I counted the hours on my last day at Desert Rhino Camp, I tried hard to remind myself of why I was there: to learn about rhino conservation, not to tick off a sighting.

BBC: Saving rhinos in Namibia