Give a dog a pony: Jack Russell enjoys rides on the back of miniature horse

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The most unlikely of trick duos, Dally the Jack Russell terrier and Spanky the miniature horse, have won fame performing as a double act in front of audiences across America.

Horse trainer, Francesca Carson, explained that soon after she rescued the pair, they quickly began a friendship which has now spawned a showbiz career complete with an appearance on the David Letterman Show.

Ms Carson, a native of Spokane in Washington state, said of the pair: ‘Dally would always sit and watch while I was training Spanky and then one day she just leaped up onto Spanky’s back – on that day their friendship really started.

‘It’s really special to see the trust they have between each other – it’s remarkable for a horse to allow a dog to jump on him whenever he wants.

‘Along with performing together they also drink and eat together – they’re really close friends.’