DEBORAH AMOS, Host:
It turns out an old dog can teach new tricks. Ask Uno, a cocker spaniel who may be the oldest living dog. He turned 22 on New Year's Day. That's more than a century in human years. Uno's vet says the old guy is an amazing dog, considering he's still healthy and going strong. He has a little trouble walking upstairs to get to his owner's bed. He's trained them to carry him up when he runs out of steam. It's MORNING EDITION.