Komodo Dragon And Giant Tortoise Photocall At London Zoo

LONDON, UNITED KINGDOM - AUGUST 08: As part of ZSL London Zoo's extensive enrichment programme, Giant Galapagos tortoises have been given an upside-down version of apple bobbing has been going down a storm with the long-necked reptiles at London Zoo on August 8, 2013 in London, England. Keepers have hung ropes threaded with brightly-coloured apples from the overhanging branches in the tortoise enclosure, which the huge reptiles have to grasp and pull on with their beak-like mouths. (Photo by John Phillips/UK Press via Getty Images)