A rescue centre is searching for a new home for a dog that can only understand Polish.
Caleb, a four-year-old German Shepherd, was thought to be "untrainable" because he could not follow basic commands.
But staff at the Dogs Trust shelter in Kenilworth, Warwickshire, eventually realised he was being held back by a language barrier.
They are now appealing for a Polish-speaking owner to take in the homeless hound.
Sandra Foulds, the centre's manager, said: "When Caleb first arrived, we thought that his lack of response to training commands was due to a change in his environment and him adjusting to life in kennels.
"But once we figured out it was the language barrier holding him back, there’s no stopping him when he’s being spoken to in Polish and he’s really keen to show off his tricks."
Staff realised the problem after they discovered Caleb had been dropped off by Polish owners, who could no longer look after him, three months ago.
They asked Polish visitor, Mariusz Budz, who was adopting another dog, to spend some time with the German Shepherd and try out some basic commands in his native tongue to see if could understand.
Within seconds he was performing a range of tricks.
http://www.standard.co.uk/news/uk/dogs-trust-hunts-new-home-german-shepherd-only-understands-polish-a3566806.html