Derrick bagged the record for the world's tallest donkey - recorded at 5ft 5in (1.6m), while his pal, Bambou, took top spot in the longest ears on a living donkey category - 1ft 1in (33cm).

Every continent has produced its own version of a flightless giant. Some are surprisingly small, while others reach truly massive sizes. This ranking compares all seven continents based on their ...