Mike Greenberg is co-host of ESPN’s popular radio and TV show Mike & Mike in the Morning, which premiered in 1998 and is carried by more than 310 affiliates nationwide. He's been to Super Bowls, World Series, All-Star Games, and Final Fours; he's interviewed Michael Jordan, Joe Montana, and Wayne Gretzky - basically, he gets paid to enthuse about sports, which means he's the envy of most men in America.

Mark Jenkins is a field staff writer for National Geographic Magazine and writer-in-residence at the University of Wyoming. In 2009 he won the National Magazine Award for photojournalism, along with his colleague Brint Stirton, for their National Geographic story “Who Murdered The Mountain Gorillas.” Jenkins was “The Hard Way” columnist for Outside magazine for eight years. He is the author of three books: The Hard Way (Simon and Schuster, 2002), To Timbuktu (William Morrow, 1997), and Off the Map (William Morrow, 1992). He resides in Laramie, Wyoming, with his wife and two daughters.