Border collies Ace and Holly were shown on camera performing a gravity - lifting feat together . The baby pooches stood up on their hind legs while balancing on their backs and performing Dai ##y . They have appeared in a number of videos showing off their legs .
Border collies Ace and Holly were caught on camera performing a gravity-defying feat together . The two pooches stood up on their hind legs while balancing on their owner and trainer Dai Aoki . They have appeared in a number of videos showing off their tricks .