Big cats today face multiple threats—from poaching and habitat loss to snares and human conflict. But also key to their survival is the presence of preferred prey. The WCS Laos program’s Akchousanh Rasphone knows which species are prized on the menu of the country’s clouded leopards and, one day, might help sustain a return of “the big guy,” as she refers to the tiger—now functionally extinct in Laos.