Pets are great, but in our modern hectic lives it's increasingly difficult to give them the love and attention they deserve without paying someone else to do it. But what if you never needed to feed them, walk them or worry about them tearing up the house? Maybe that's why Sony is bringing its robotic dog Aibo back from the dead. The Japanese electronics firm, once a pioneer in home robotics, announced that after more than a decade its robot canine pal will return to shelves with artificial intelligence-infused upgrades. Aibo is an ivory-white, puppy-sized, 30 centimetre plastic-covered hound with flapping black ears and a wagging tail.