Britain's Prince William (L) and his wife Catherine, the Duchess of Cambridge, walk through the rainforest in Danum Valley Research Center in Danum Valley, some 70 kilometers west of Lahad Datu, on the island of Borneo on September 15, 2012. The visit of the Duke and Duchess of Cambridge to Malaysia is part of the royal couple's tour to celebrate Queen Elizabeth II's Diamond Jubilee. AFP PHOTO / POOL / Vincent Thian (Photo credit should read VINCENT THIAN/AFP/GettyImages)
