Dogs have set some incredible records. From the biggest dog in the world and a skateboarding bulldog to the chihuahuas which hold various small dog records and those with record-breaking tongues and ears, breeds of all shapes and sizes have entered the record books for various skills and attributes.

Keon the Irish Wolfhound has the longest tail on a dog at 76.8 cm
Longest tail on a dog
Otto has held the record for the longest human tunnel traveled through by a skateboarding dog
Otto the skateboarding bulldog
Guide Dogs for the Blind Association had taught an incredible 33,910 graduates by 31 December 2016, earning them a title for the most guide dogs trained by an organisation and a place
How to train a guide dog
When the biggest dog in the world Gibson met the shortest dog, Boo Boo
Tallest and shortest dogs meet (former record holders)
Mochi possesses the longest tongue on a dog at 18.58 cm (7.3 in)
Longest tongue