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At 25.29 inches, KneeHi (get it?) is the world's shortest donkey. The miniature Meditteranean donkey, pictured here with a regular size animal, is owned by Jim and Frankie Lee of Gainesville, Florida. (Guinness World Record)

A skateboarding goat, walking robots and tightroping dogs set Guinness World Records

The world's smallest dog, fastest human backbend walk and largest collection of vacuum cleaners have been revealed by this year's Guinness World Record 2014 book. The collection of records features the world's wackiest feats - if you ever wanted to know the longest distance skateboarded by a goat, now you do. Take a look at some of the most bizarre records to made this year.