Giant George, a Great Dane from Tucson in the US state of Arizona, is officially the tallest dog in the world - measuring 109 centimetres from paw to shoulder and 2.2 metres from nose to tail, dpa quoted the Guinness Book of Records in London as saying today. The title was announced after a special Guinness World Records adjudicator visited the hound to verify his measurements. Giant George weighs 111 kilograms and consumes around 50 kilograms of food every month. He displaces Titan, a Great Dane from San Diego, California, from the top spot by being two centimetres taller. The record had sparked a great interest in finding other pet records, the Guinness Book of World Records said. "We're asking everyone to check their dog houses, scratch posts and under the bed - they just might be living with a record-breaking pet," said Craig Glenday, the publication's editor-in-chief.