This story appears in the January 2011 issue of National Geographic magazine. “Past the hand of dog, watch out for dinosaurs,” says a voice in the dark. I recognize Jonathan Sims’s clipped ...
Deep in the mountains of Phong Nha - Ke Bang National Park in Quang Binh Province, central Vietnam, small huts and cave dwellings are scattered every few kilometers. At Chim Cave, a two-hour trek ...