A dog called Tai is learning to respond to commands in a unique way, via vibrations in his vest.
Tai was raised to be a guide dog for a blind person but failed the test because he was easily distracted and preferred sniffing things.
Now reinvented as a remote-controlled canine, he responds better to vibrating commands than vocal ones.
The system he is testing could be useful in situations where a dog is not in the line of sight of its owner.
That includes military dogs and those employed on search-and-rescue missions. The vest could also be a new way for disabled people to communicate with an assistance dog.
The system was developed at Ben-Gurion University (BGU) in Israel and relies on a modified canine vest which contains four small vibrating motors positioned over the dog's back and sides.
The dog is trained to respond to different vibrations sent via wireless remote control.