 In "Lost Land of the Volcano", BBC One 2009, he led the first western expedition into the crater of the extinct volcano, Mount Bosavi, in Papua New Guinea, where they discovered new species of cuscus, frogs and a giant rat, the biggest on Earth.They also uncovered miles of undiscovered passages in the Mageni cave system in New Britain.In "Lost Land of the Tiger", BBC One 2010, the expedition team travelled to Bhutan and filmed, via remote cameras, the Bengal tigers above the tree-line in the Himalayas, categorically higher than had ever been filmed before.